Finding the Fourth Proportional to 65,402.57, 90,252.82 and 37,109.81

Step by Step Solution

1. Step 1: Write the proportion equation
   65,402.57 : 90,252.82 = 37,109.81 : x
2. Step 2: Convert to fraction form
   65,402.57/90,252.82 = 37,109.81/x
3. Step 3: Cross multiply
   65,402.57x = 90,252.82 × 37,109.81
4. Step 4: Simplify right side
   65,402.57x = 3,349,265,002.16
5. Step 5: Solve for x
   x = 3,349,265,002.16/65,402.57
6. Step 6: Final answer
   x = 51,209.99