Finding the Fourth Proportional to 280,943,838,994.72, 387,702,784,747.50 and 152,485,314,095.84

Step by Step Solution

1. Step 1: Write the proportion equation
   280,943,838,994.72 : 387,702,784,747.50 = 152,485,314,095.84 : x
2. Step 2: Convert to fraction form
   280,943,838,994.72/387,702,784,747.50 = 152,485,314,095.84/x
3. Step 3: Cross multiply
   280,943,838,994.72x = 387,702,784,747.50 × 152,485,314,095.84
4. Step 4: Simplify right side
   280,943,838,994.72x = 59,118,980,908,054,378,184,704
5. Step 5: Solve for x
   x = 59,118,980,908,054,378,184,704/280,943,838,994.72
6. Step 6: Final answer
   x = 210,429,889,189.23