Finding the Fourth Proportional to 90,089.72, 135,149.16 and 37,501.28

Step by Step Solution

1. Step 1: Write the proportion equation
   90,089.72 : 135,149.16 = 37,501.28 : x
2. Step 2: Convert to fraction form
   90,089.72/135,149.16 = 37,501.28/x
3. Step 3: Cross multiply
   90,089.72x = 135,149.16 × 37,501.28
4. Step 4: Simplify right side
   90,089.72x = 5,068,266,490.92
5. Step 5: Solve for x
   x = 5,068,266,490.92/90,089.72
6. Step 6: Final answer
   x = 56,257.99