Finding the Fourth Proportional to 119,788,402.62, 165,308,105.84 and 64,784,259.12

Step by Step Solution

1. Step 1: Write the proportion equation
   119,788,402.62 : 165,308,105.84 = 64,784,259.12 : x
2. Step 2: Convert to fraction form
   119,788,402.62/165,308,105.84 = 64,784,259.12/x
3. Step 3: Cross multiply
   119,788,402.62x = 165,308,105.84 × 64,784,259.12
4. Step 4: Simplify right side
   119,788,402.62x = 10,709,363,162,923,266
5. Step 5: Solve for x
   x = 10,709,363,162,923,266/119,788,402.62
6. Step 6: Final answer
   x = 89,402,337.20