Finding the Fourth Proportional to 108,061.80, 149,143.52 and 67,809.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,061.80 : 149,143.52 = 67,809.12 : x
2. Step 2: Convert to fraction form
   108,061.80/149,143.52 = 67,809.12/x
3. Step 3: Cross multiply
   108,061.80x = 149,143.52 × 67,809.12
4. Step 4: Simplify right side
   108,061.80x = 10,113,290,844.90
5. Step 5: Solve for x
   x = 10,113,290,844.90/108,061.80
6. Step 6: Final answer
   x = 93,588.03