Finding the Fourth Proportional to 90,682.69, 125,103.27 and 56,632.07

Step by Step Solution

1. Step 1: Write the proportion equation
   90,682.69 : 125,103.27 = 56,632.07 : x
2. Step 2: Convert to fraction form
   90,682.69/125,103.27 = 56,632.07/x
3. Step 3: Cross multiply
   90,682.69x = 125,103.27 × 56,632.07
4. Step 4: Simplify right side
   90,682.69x = 7,084,857,143.87
5. Step 5: Solve for x
   x = 7,084,857,143.87/90,682.69
6. Step 6: Final answer
   x = 78,128.00