Finding the Fourth Proportional to 72,693.56, 109,039.03 and 39,624.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,693.56 : 109,039.03 = 39,624.10 : x
2. Step 2: Convert to fraction form
   72,693.56/109,039.03 = 39,624.10/x
3. Step 3: Cross multiply
   72,693.56x = 109,039.03 × 39,624.10
4. Step 4: Simplify right side
   72,693.56x = 4,320,573,056.97
5. Step 5: Solve for x
   x = 4,320,573,056.97/72,693.56
6. Step 6: Final answer
   x = 59,435.43