Finding the Fourth Proportional to 55,018.54, 75,927.41 and 31,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,018.54 : 75,927.41 = 31,144.72 : x
2. Step 2: Convert to fraction form
   55,018.54/75,927.41 = 31,144.72/x
3. Step 3: Cross multiply
   55,018.54x = 75,927.41 × 31,144.72
4. Step 4: Simplify right side
   55,018.54x = 2,364,737,769.05
5. Step 5: Solve for x
   x = 2,364,737,769.05/55,018.54
6. Step 6: Final answer
   x = 42,980.74