Finding the Fourth Proportional to 55,126.72, 76,085.42 and 31,253.48

Step by Step Solution

1. Step 1: Write the proportion equation
   55,126.72 : 76,085.42 = 31,253.48 : x
2. Step 2: Convert to fraction form
   55,126.72/76,085.42 = 31,253.48/x
3. Step 3: Cross multiply
   55,126.72x = 76,085.42 × 31,253.48
4. Step 4: Simplify right side
   55,126.72x = 2,377,934,152.26
5. Step 5: Solve for x
   x = 2,377,934,152.26/55,126.72
6. Step 6: Final answer
   x = 43,135.78