Finding the Fourth Proportional to 108,411.12, 149,613.62 and 60,664.05

Step by Step Solution

1. Step 1: Write the proportion equation
   108,411.12 : 149,613.62 = 60,664.05 : x
2. Step 2: Convert to fraction form
   108,411.12/149,613.62 = 60,664.05/x
3. Step 3: Cross multiply
   108,411.12x = 149,613.62 × 60,664.05
4. Step 4: Simplify right side
   108,411.12x = 9,076,167,821.04
5. Step 5: Solve for x
   x = 9,076,167,821.04/108,411.12
6. Step 6: Final answer
   x = 83,719.90