Finding the Fourth Proportional to 72,470.37, 108,706.39 and 21,869.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,470.37 : 108,706.39 = 21,869.83 : x
2. Step 2: Convert to fraction form
   72,470.37/108,706.39 = 21,869.83/x
3. Step 3: Cross multiply
   72,470.37x = 108,706.39 × 21,869.83
4. Step 4: Simplify right side
   72,470.37x = 2,377,390,159.86
5. Step 5: Solve for x
   x = 2,377,390,159.86/72,470.37
6. Step 6: Final answer
   x = 32,805.00