Finding the Fourth Proportional to 55,279.31, 76,287.48 and 31,410.02

Step by Step Solution

1. Step 1: Write the proportion equation
   55,279.31 : 76,287.48 = 31,410.02 : x
2. Step 2: Convert to fraction form
   55,279.31/76,287.48 = 31,410.02/x
3. Step 3: Cross multiply
   55,279.31x = 76,287.48 × 31,410.02
4. Step 4: Simplify right side
   55,279.31x = 2,396,191,272.55
5. Step 5: Solve for x
   x = 2,396,191,272.55/55,279.31
6. Step 6: Final answer
   x = 43,346.98