Finding the Fourth Proportional to 272,585.33, 408,877.89 and 72,900.53

Step by Step Solution

1. Step 1: Write the proportion equation
   272,585.33 : 408,877.89 = 72,900.53 : x
2. Step 2: Convert to fraction form
   272,585.33/408,877.89 = 72,900.53/x
3. Step 3: Cross multiply
   272,585.33x = 408,877.89 × 72,900.53
4. Step 4: Simplify right side
   272,585.33x = 29,807,413,228.19
5. Step 5: Solve for x
   x = 29,807,413,228.19/272,585.33
6. Step 6: Final answer
   x = 109,350.76