Finding the Fourth Proportional to 108,621.49, 149,906.53 and 60,238.57

Step by Step Solution

1. Step 1: Write the proportion equation
   108,621.49 : 149,906.53 = 60,238.57 : x
2. Step 2: Convert to fraction form
   108,621.49/149,906.53 = 60,238.57/x
3. Step 3: Cross multiply
   108,621.49x = 149,906.53 × 60,238.57
4. Step 4: Simplify right side
   108,621.49x = 9,030,155,000.86
5. Step 5: Solve for x
   x = 9,030,155,000.86/108,621.49
6. Step 6: Final answer
   x = 83,134.15