Finding the Fourth Proportional to 69,048.48, 103,397.76 and 55,168.32

Step by Step Solution

1. Step 1: Write the proportion equation
   69,048.48 : 103,397.76 = 55,168.32 : x
2. Step 2: Convert to fraction form
   69,048.48/103,397.76 = 55,168.32/x
3. Step 3: Cross multiply
   69,048.48x = 103,397.76 × 55,168.32
4. Step 4: Simplify right side
   69,048.48x = 5,704,280,710.96
5. Step 5: Solve for x
   x = 5,704,280,710.96/69,048.48
6. Step 6: Final answer
   x = 82,612.69