Finding the Fourth Proportional to 150,372.72, 207,504.72 and 82,388.88

Step by Step Solution

1. Step 1: Write the proportion equation
   150,372.72 : 207,504.72 = 82,388.88 : x
2. Step 2: Convert to fraction form
   150,372.72/207,504.72 = 82,388.88/x
3. Step 3: Cross multiply
   150,372.72x = 207,504.72 × 82,388.88
4. Step 4: Simplify right side
   150,372.72x = 17,096,081,475.51
5. Step 5: Solve for x
   x = 17,096,081,475.51/150,372.72
6. Step 6: Final answer
   x = 113,691.38