Finding the Fourth Proportional to 108,192.16, 149,363.04 and 72,443.08

Step by Step Solution

1. Step 1: Write the proportion equation
   108,192.16 : 149,363.04 = 72,443.08 : x
2. Step 2: Convert to fraction form
   108,192.16/149,363.04 = 72,443.08/x
3. Step 3: Cross multiply
   108,192.16x = 149,363.04 × 72,443.08
4. Step 4: Simplify right side
   108,192.16x = 10,820,318,655.76
5. Step 5: Solve for x
   x = 10,820,318,655.76/108,192.16
6. Step 6: Final answer
   x = 100,010.19