Finding the Fourth Proportional to 65,507.28, 90,391.59 and 37,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,507.28 : 90,391.59 = 37,207.50 : x
2. Step 2: Convert to fraction form
   65,507.28/90,391.59 = 37,207.50/x
3. Step 3: Cross multiply
   65,507.28x = 90,391.59 × 37,207.50
4. Step 4: Simplify right side
   65,507.28x = 3,363,245,084.93
5. Step 5: Solve for x
   x = 3,363,245,084.93/65,507.28
6. Step 6: Final answer
   x = 51,341.55