Finding the Fourth Proportional to 64,841.16, 89,446.79 and 52,755.15

Step by Step Solution

1. Step 1: Write the proportion equation
   64,841.16 : 89,446.79 = 52,755.15 : x
2. Step 2: Convert to fraction form
   64,841.16/89,446.79 = 52,755.15/x
3. Step 3: Cross multiply
   64,841.16x = 89,446.79 × 52,755.15
4. Step 4: Simplify right side
   64,841.16x = 4,718,779,290.78
5. Step 5: Solve for x
   x = 4,718,779,290.78/64,841.16
6. Step 6: Final answer
   x = 72,774.44