Finding the Fourth Proportional to 45,559.86, 68,340.24 and 15,978.42

Step by Step Solution

1. Step 1: Write the proportion equation
   45,559.86 : 68,340.24 = 15,978.42 : x
2. Step 2: Convert to fraction form
   45,559.86/68,340.24 = 15,978.42/x
3. Step 3: Cross multiply
   45,559.86x = 68,340.24 × 15,978.42
4. Step 4: Simplify right side
   45,559.86x = 1,091,969,057.62
5. Step 5: Solve for x
   x = 1,091,969,057.62/45,559.86
6. Step 6: Final answer
   x = 23,967.79