Finding the Fourth Proportional to 65,160.71, 89,912.22 and 36,478.88

Step by Step Solution

1. Step 1: Write the proportion equation
   65,160.71 : 89,912.22 = 36,478.88 : x
2. Step 2: Convert to fraction form
   65,160.71/89,912.22 = 36,478.88/x
3. Step 3: Cross multiply
   65,160.71x = 89,912.22 × 36,478.88
4. Step 4: Simplify right side
   65,160.71x = 3,279,897,083.91
5. Step 5: Solve for x
   x = 3,279,897,083.91/65,160.71
6. Step 6: Final answer
   x = 50,335.50