Finding the Fourth Proportional to 42,044.89, 63,079.63 and 13,581.19

Step by Step Solution

1. Step 1: Write the proportion equation
   42,044.89 : 63,079.63 = 13,581.19 : x
2. Step 2: Convert to fraction form
   42,044.89/63,079.63 = 13,581.19/x
3. Step 3: Cross multiply
   42,044.89x = 63,079.63 × 13,581.19
4. Step 4: Simplify right side
   42,044.89x = 856,696,440.16
5. Step 5: Solve for x
   x = 856,696,440.16/42,044.89
6. Step 6: Final answer
   x = 20,375.76