Finding the Fourth Proportional to 55,336.98, 76,359.90 and 31,459

Step by Step Solution

1. Step 1: Write the proportion equation
   55,336.98 : 76,359.90 = 31,459 : x
2. Step 2: Convert to fraction form
   55,336.98/76,359.90 = 31,459/x
3. Step 3: Cross multiply
   55,336.98x = 76,359.90 × 31,459
4. Step 4: Simplify right side
   55,336.98x = 2,402,206,094.10
5. Step 5: Solve for x
   x = 2,402,206,094.10/55,336.98
6. Step 6: Final answer
   x = 43,410.50