Finding the Fourth Proportional to 55,308.24, 76,329 and 31,434.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,308.24 : 76,329 = 31,434.96 : x
2. Step 2: Convert to fraction form
   55,308.24/76,329 = 31,434.96/x
3. Step 3: Cross multiply
   55,308.24x = 76,329 × 31,434.96
4. Step 4: Simplify right side
   55,308.24x = 2,399,399,061.84
5. Step 5: Solve for x
   x = 2,399,399,061.84/55,308.24
6. Step 6: Final answer
   x = 43,382.31