Finding the Fourth Proportional to 115,320,831.50, 159,142,644.65 and 65,095,621.90

Step by Step Solution

1. Step 1: Write the proportion equation
   115,320,831.50 : 159,142,644.65 = 65,095,621.90 : x
2. Step 2: Convert to fraction form
   115,320,831.50/159,142,644.65 = 65,095,621.90/x
3. Step 3: Cross multiply
   115,320,831.50x = 159,142,644.65 × 65,095,621.90
4. Step 4: Simplify right side
   115,320,831.50x = 10,359,489,423,506,746
5. Step 5: Solve for x
   x = 10,359,489,423,506,746/115,320,831.50
6. Step 6: Final answer
   x = 89,831,900.18