Finding the Fourth Proportional to 69,696.16, 96,087.76 and 55,403.52

Step by Step Solution

1. Step 1: Write the proportion equation
   69,696.16 : 96,087.76 = 55,403.52 : x
2. Step 2: Convert to fraction form
   69,696.16/96,087.76 = 55,403.52/x
3. Step 3: Cross multiply
   69,696.16x = 96,087.76 × 55,403.52
4. Step 4: Simplify right side
   69,696.16x = 5,323,600,132.92
5. Step 5: Solve for x
   x = 5,323,600,132.92/69,696.16
6. Step 6: Final answer
   x = 76,382.98