Finding the Fourth Proportional to 147,279, 220,783.52 and 57,382.37

Step by Step Solution

1. Step 1: Write the proportion equation
   147,279 : 220,783.52 = 57,382.37 : x
2. Step 2: Convert to fraction form
   147,279/220,783.52 = 57,382.37/x
3. Step 3: Cross multiply
   147,279x = 220,783.52 × 57,382.37
4. Step 4: Simplify right side
   147,279x = 12,669,080,243.71
5. Step 5: Solve for x
   x = 12,669,080,243.71/147,279
6. Step 6: Final answer
   x = 86,020.96