Finding the Fourth Proportional to 72,089.95, 108,134.88 and 52,493.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,089.95 : 108,134.88 = 52,493.17 : x
2. Step 2: Convert to fraction form
   72,089.95/108,134.88 = 52,493.17/x
3. Step 3: Cross multiply
   72,089.95x = 108,134.88 × 52,493.17
4. Step 4: Simplify right side
   72,089.95x = 5,676,342,638.77
5. Step 5: Solve for x
   x = 5,676,342,638.77/72,089.95
6. Step 6: Final answer
   x = 78,739.72