Finding the Fourth Proportional to 42,099.18, 63,115.47 and 15,801

Step by Step Solution

1. Step 1: Write the proportion equation
   42,099.18 : 63,115.47 = 15,801 : x
2. Step 2: Convert to fraction form
   42,099.18/63,115.47 = 15,801/x
3. Step 3: Cross multiply
   42,099.18x = 63,115.47 × 15,801
4. Step 4: Simplify right side
   42,099.18x = 997,287,541.47
5. Step 5: Solve for x
   x = 997,287,541.47/42,099.18
6. Step 6: Final answer
   x = 23,689.00