Finding the Fourth Proportional to 108,200.64, 149,317.62 and 60,456

Step by Step Solution

1. Step 1: Write the proportion equation
   108,200.64 : 149,317.62 = 60,456 : x
2. Step 2: Convert to fraction form
   108,200.64/149,317.62 = 60,456/x
3. Step 3: Cross multiply
   108,200.64x = 149,317.62 × 60,456
4. Step 4: Simplify right side
   108,200.64x = 9,027,146,034.72
5. Step 5: Solve for x
   x = 9,027,146,034.72/108,200.64
6. Step 6: Final answer
   x = 83,429.69