Finding the Fourth Proportional to 78,555.52, 108,280.50 and 53,053.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,555.52 : 108,280.50 = 53,053.68 : x
2. Step 2: Convert to fraction form
   78,555.52/108,280.50 = 53,053.68/x
3. Step 3: Cross multiply
   78,555.52x = 108,280.50 × 53,053.68
4. Step 4: Simplify right side
   78,555.52x = 5,744,679,204.34
5. Step 5: Solve for x
   x = 5,744,679,204.34/78,555.52
6. Step 6: Final answer
   x = 73,128.90