Finding the Fourth Proportional to 276,270,977.58, 381,251,610.72 and 152,508,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,270,977.58 : 381,251,610.72 = 152,508,997.50 : x
2. Step 2: Convert to fraction form
   276,270,977.58/381,251,610.72 = 152,508,997.50/x
3. Step 3: Cross multiply
   276,270,977.58x = 381,251,610.72 × 152,508,997.50
4. Step 4: Simplify right side
   276,270,977.58x = 58,144,300,946,167,456
5. Step 5: Solve for x
   x = 58,144,300,946,167,456/276,270,977.58
6. Step 6: Final answer
   x = 210,461,125.72