Finding the Fourth Proportional to 108,445.16, 149,654.29 and 60,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,445.16 : 149,654.29 = 60,698.50 : x
2. Step 2: Convert to fraction form
   108,445.16/149,654.29 = 60,698.50/x
3. Step 3: Cross multiply
   108,445.16x = 149,654.29 × 60,698.50
4. Step 4: Simplify right side
   108,445.16x = 9,083,789,869.80
5. Step 5: Solve for x
   x = 9,083,789,869.80/108,445.16
6. Step 6: Final answer
   x = 83,763.90