Finding the Fourth Proportional to 115,024,587.71, 158,747,552.12 and 64,790,459.69

Step by Step Solution

1. Step 1: Write the proportion equation
   115,024,587.71 : 158,747,552.12 = 64,790,459.69 : x
2. Step 2: Convert to fraction form
   115,024,587.71/158,747,552.12 = 64,790,459.69/x
3. Step 3: Cross multiply
   115,024,587.71x = 158,747,552.12 × 64,790,459.69
4. Step 4: Simplify right side
   115,024,587.71x = 10,285,326,875,885,272
5. Step 5: Solve for x
   x = 10,285,326,875,885,272/115,024,587.71
6. Step 6: Final answer
   x = 89,418,506.78