Finding the Fourth Proportional to 90,015.50, 134,931.09 and 37,455.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,015.50 : 134,931.09 = 37,455.50 : x
2. Step 2: Convert to fraction form
   90,015.50/134,931.09 = 37,455.50/x
3. Step 3: Cross multiply
   90,015.50x = 134,931.09 × 37,455.50
4. Step 4: Simplify right side
   90,015.50x = 5,053,911,441.50
5. Step 5: Solve for x
   x = 5,053,911,441.50/90,015.50
6. Step 6: Final answer
   x = 56,144.90