Finding the Fourth Proportional to 72,300.96, 108,470.14 and 42,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300.96 : 108,470.14 = 42,340.50 : x
2. Step 2: Convert to fraction form
   72,300.96/108,470.14 = 42,340.50/x
3. Step 3: Cross multiply
   72,300.96x = 108,470.14 × 42,340.50
4. Step 4: Simplify right side
   72,300.96x = 4,592,679,856.82
5. Step 5: Solve for x
   x = 4,592,679,856.82/72,300.96
6. Step 6: Final answer
   x = 63,521.70