Finding the Fourth Proportional to 55,196.72, 76,172.92 and 31,326.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,196.72 : 76,172.92 = 31,326.96 : x
2. Step 2: Convert to fraction form
   55,196.72/76,172.92 = 31,326.96/x
3. Step 3: Cross multiply
   55,196.72x = 76,172.92 × 31,326.96
4. Step 4: Simplify right side
   55,196.72x = 2,386,266,017.92
5. Step 5: Solve for x
   x = 2,386,266,017.92/55,196.72
6. Step 6: Final answer
   x = 43,232.03