Finding the Fourth Proportional to 63,411.90, 87,309.24 and 53,831.94

Step by Step Solution

1. Step 1: Write the proportion equation
   63,411.90 : 87,309.24 = 53,831.94 : x
2. Step 2: Convert to fraction form
   63,411.90/87,309.24 = 53,831.94/x
3. Step 3: Cross multiply
   63,411.90x = 87,309.24 × 53,831.94
4. Step 4: Simplify right side
   63,411.90x = 4,700,025,769.13
5. Step 5: Solve for x
   x = 4,700,025,769.13/63,411.90
6. Step 6: Final answer
   x = 74,118.99