Finding the Fourth Proportional to 78,787.73, 108,689.55 and 53,303.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,787.73 : 108,689.55 = 53,303.06 : x
2. Step 2: Convert to fraction form
   78,787.73/108,689.55 = 53,303.06/x
3. Step 3: Cross multiply
   78,787.73x = 108,689.55 × 53,303.06
4. Step 4: Simplify right side
   78,787.73x = 5,793,485,605.02
5. Step 5: Solve for x
   x = 5,793,485,605.02/78,787.73
6. Step 6: Final answer
   x = 73,532.84