Finding the Fourth Proportional to 57,300.96, 79,080.06 and 31,809.72

Step by Step Solution

1. Step 1: Write the proportion equation
   57,300.96 : 79,080.06 = 31,809.72 : x
2. Step 2: Convert to fraction form
   57,300.96/79,080.06 = 31,809.72/x
3. Step 3: Cross multiply
   57,300.96x = 79,080.06 × 31,809.72
4. Step 4: Simplify right side
   57,300.96x = 2,515,514,566.18
5. Step 5: Solve for x
   x = 2,515,514,566.18/57,300.96
6. Step 6: Final answer
   x = 43,900.04