Finding the Fourth Proportional to 65,147.32, 89,887.62 and 38,287.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,147.32 : 89,887.62 = 38,287.72 : x
2. Step 2: Convert to fraction form
   65,147.32/89,887.62 = 38,287.72/x
3. Step 3: Cross multiply
   65,147.32x = 89,887.62 × 38,287.72
4. Step 4: Simplify right side
   65,147.32x = 3,441,592,026.03
5. Step 5: Solve for x
   x = 3,441,592,026.03/65,147.32
6. Step 6: Final answer
   x = 52,827.84