Finding the Fourth Proportional to 55,314.32, 76,335.72 and 31,442

Step by Step Solution

1. Step 1: Write the proportion equation
   55,314.32 : 76,335.72 = 31,442 : x
2. Step 2: Convert to fraction form
   55,314.32/76,335.72 = 31,442/x
3. Step 3: Cross multiply
   55,314.32x = 76,335.72 × 31,442
4. Step 4: Simplify right side
   55,314.32x = 2,400,147,708.24
5. Step 5: Solve for x
   x = 2,400,147,708.24/55,314.32
6. Step 6: Final answer
   x = 43,391.07