Finding the Fourth Proportional to 108,412.87, 149,616.03 and 60,665.80

Step by Step Solution

1. Step 1: Write the proportion equation
   108,412.87 : 149,616.03 = 60,665.80 : x
2. Step 2: Convert to fraction form
   108,412.87/149,616.03 = 60,665.80/x
3. Step 3: Cross multiply
   108,412.87x = 149,616.03 × 60,665.80
4. Step 4: Simplify right side
   108,412.87x = 9,076,576,152.77
5. Step 5: Solve for x
   x = 9,076,576,152.77/108,412.87
6. Step 6: Final answer
   x = 83,722.31