Finding the Fourth Proportional to 106,321,987.50, 146,724,401.61 and 57,429,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   106,321,987.50 : 146,724,401.61 = 57,429,415.50 : x
2. Step 2: Convert to fraction form
   106,321,987.50/146,724,401.61 = 57,429,415.50/x
3. Step 3: Cross multiply
   106,321,987.50x = 146,724,401.61 × 57,429,415.50
4. Step 4: Simplify right side
   106,321,987.50x = 8,426,296,624,049,560
5. Step 5: Solve for x
   x = 8,426,296,624,049,560/106,321,987.50
6. Step 6: Final answer
   x = 79,252,625.18