Finding the Fourth Proportional to 90,656.38, 124,975.87 and 63,715.27

Step by Step Solution

1. Step 1: Write the proportion equation
   90,656.38 : 124,975.87 = 63,715.27 : x
2. Step 2: Convert to fraction form
   90,656.38/124,975.87 = 63,715.27/x
3. Step 3: Cross multiply
   90,656.38x = 124,975.87 × 63,715.27
4. Step 4: Simplify right side
   90,656.38x = 7,962,871,300.53
5. Step 5: Solve for x
   x = 7,962,871,300.53/90,656.38
6. Step 6: Final answer
   x = 87,835.75