Finding the Fourth Proportional to 72,435.53, 108,684.50 and 39,179.00

Step by Step Solution

1. Step 1: Write the proportion equation
   72,435.53 : 108,684.50 = 39,179.00 : x
2. Step 2: Convert to fraction form
   72,435.53/108,684.50 = 39,179.00/x
3. Step 3: Cross multiply
   72,435.53x = 108,684.50 × 39,179.00
4. Step 4: Simplify right side
   72,435.53x = 4,258,149,286.18
5. Step 5: Solve for x
   x = 4,258,149,286.18/72,435.53
6. Step 6: Final answer
   x = 58,785.37