Finding the Fourth Proportional to 108,405.72, 149,585.58 and 60,653.88

Step by Step Solution

1. Step 1: Write the proportion equation
   108,405.72 : 149,585.58 = 60,653.88 : x
2. Step 2: Convert to fraction form
   108,405.72/149,585.58 = 60,653.88/x
3. Step 3: Cross multiply
   108,405.72x = 149,585.58 × 60,653.88
4. Step 4: Simplify right side
   108,405.72x = 9,072,945,819.05
5. Step 5: Solve for x
   x = 9,072,945,819.05/108,405.72
6. Step 6: Final answer
   x = 83,694.35