Finding the Fourth Proportional to 55,429.91, 83,132.71 and 15,978.45

Step by Step Solution

1. Step 1: Write the proportion equation
   55,429.91 : 83,132.71 = 15,978.45 : x
2. Step 2: Convert to fraction form
   55,429.91/83,132.71 = 15,978.45/x
3. Step 3: Cross multiply
   55,429.91x = 83,132.71 × 15,978.45
4. Step 4: Simplify right side
   55,429.91x = 1,328,331,810.15
5. Step 5: Solve for x
   x = 1,328,331,810.15/55,429.91
6. Step 6: Final answer
   x = 23,964.17