Finding the Fourth Proportional to 129,841.38, 179,190.12 and 72,492.00

Step by Step Solution

1. Step 1: Write the proportion equation
   129,841.38 : 179,190.12 = 72,492.00 : x
2. Step 2: Convert to fraction form
   129,841.38/179,190.12 = 72,492.00/x
3. Step 3: Cross multiply
   129,841.38x = 179,190.12 × 72,492.00
4. Step 4: Simplify right side
   129,841.38x = 12,989,849,778.92
5. Step 5: Solve for x
   x = 12,989,849,778.92/129,841.38
6. Step 6: Final answer
   x = 100,043.99