Finding the Fourth Proportional to 64,116.10, 88,422.69 and 53,396.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,116.10 : 88,422.69 = 53,396.38 : x
2. Step 2: Convert to fraction form
   64,116.10/88,422.69 = 53,396.38/x
3. Step 3: Cross multiply
   64,116.10x = 88,422.69 × 53,396.38
4. Step 4: Simplify right side
   64,116.10x = 4,721,451,555.86
5. Step 5: Solve for x
   x = 4,721,451,555.86/64,116.10
6. Step 6: Final answer
   x = 73,639.09