Finding the Fourth Proportional to 82,470.26, 113,836.38 and 58,665.98

Step by Step Solution

1. Step 1: Write the proportion equation
   82,470.26 : 113,836.38 = 58,665.98 : x
2. Step 2: Convert to fraction form
   82,470.26/113,836.38 = 58,665.98/x
3. Step 3: Cross multiply
   82,470.26x = 113,836.38 × 58,665.98
4. Step 4: Simplify right side
   82,470.26x = 6,678,322,792.35
5. Step 5: Solve for x
   x = 6,678,322,792.35/82,470.26
6. Step 6: Final answer
   x = 80,978.56