Finding the Fourth Proportional to 90,482.43, 135,701.78 and 37,931.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,482.43 : 135,701.78 = 37,931.25 : x
2. Step 2: Convert to fraction form
   90,482.43/135,701.78 = 37,931.25/x
3. Step 3: Cross multiply
   90,482.43x = 135,701.78 × 37,931.25
4. Step 4: Simplify right side
   90,482.43x = 5,147,337,952.97
5. Step 5: Solve for x
   x = 5,147,337,952.97/90,482.43
6. Step 6: Final answer
   x = 56,887.71