Finding the Fourth Proportional to 55,665.72, 76,830.29 and 51,182.38

Step by Step Solution

1. Step 1: Write the proportion equation
   55,665.72 : 76,830.29 = 51,182.38 : x
2. Step 2: Convert to fraction form
   55,665.72/76,830.29 = 51,182.38/x
3. Step 3: Cross multiply
   55,665.72x = 76,830.29 × 51,182.38
4. Step 4: Simplify right side
   55,665.72x = 3,932,357,098.29
5. Step 5: Solve for x
   x = 3,932,357,098.29/55,665.72
6. Step 6: Final answer
   x = 70,642.35