Finding the Fourth Proportional to 150,279.43, 207,389.48 and 82,300.15

Step by Step Solution

1. Step 1: Write the proportion equation
   150,279.43 : 207,389.48 = 82,300.15 : x
2. Step 2: Convert to fraction form
   150,279.43/207,389.48 = 82,300.15/x
3. Step 3: Cross multiply
   150,279.43x = 207,389.48 × 82,300.15
4. Step 4: Simplify right side
   150,279.43x = 17,068,185,312.42
5. Step 5: Solve for x
   x = 17,068,185,312.42/150,279.43
6. Step 6: Final answer
   x = 113,576.32