Finding the Fourth Proportional to 72,443.40, 108,691.20 and 32,459.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,443.40 : 108,691.20 = 32,459.10 : x
2. Step 2: Convert to fraction form
   72,443.40/108,691.20 = 32,459.10/x
3. Step 3: Cross multiply
   72,443.40x = 108,691.20 × 32,459.10
4. Step 4: Simplify right side
   72,443.40x = 3,528,018,529.92
5. Step 5: Solve for x
   x = 3,528,018,529.92/72,443.40
6. Step 6: Final answer
   x = 48,700.34