Finding the Fourth Proportional to 272,569.96, 408,826.18 and 72,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,569.96 : 408,826.18 = 72,910.50 : x
2. Step 2: Convert to fraction form
   272,569.96/408,826.18 = 72,910.50/x
3. Step 3: Cross multiply
   272,569.96x = 408,826.18 × 72,910.50
4. Step 4: Simplify right side
   272,569.96x = 29,807,721,196.89
5. Step 5: Solve for x
   x = 29,807,721,196.89/272,569.96
6. Step 6: Final answer
   x = 109,358.06