Finding the Fourth Proportional to 108,426.42, 149,627.39 and 60,680.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,426.42 : 149,627.39 = 60,680.12 : x
2. Step 2: Convert to fraction form
   108,426.42/149,627.39 = 60,680.12/x
3. Step 3: Cross multiply
   108,426.42x = 149,627.39 × 60,680.12
4. Step 4: Simplify right side
   108,426.42x = 9,079,406,928.95
5. Step 5: Solve for x
   x = 9,079,406,928.95/108,426.42
6. Step 6: Final answer
   x = 83,737.96