Finding the Fourth Proportional to 42,201.72, 63,311.94 and 15,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,201.72 : 63,311.94 = 15,906.69 : x
2. Step 2: Convert to fraction form
   42,201.72/63,311.94 = 15,906.69/x
3. Step 3: Cross multiply
   42,201.72x = 63,311.94 × 15,906.69
4. Step 4: Simplify right side
   42,201.72x = 1,007,083,402.88
5. Step 5: Solve for x
   x = 1,007,083,402.88/42,201.72
6. Step 6: Final answer
   x = 23,863.56