Finding the Fourth Proportional to 13,023.96, 17,963.76 and 8,478.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,023.96 : 17,963.76 = 8,478.24 : x
2. Step 2: Convert to fraction form
   13,023.96/17,963.76 = 8,478.24/x
3. Step 3: Cross multiply
   13,023.96x = 17,963.76 × 8,478.24
4. Step 4: Simplify right side
   13,023.96x = 152,301,068.58
5. Step 5: Solve for x
   x = 152,301,068.58/13,023.96
6. Step 6: Final answer
   x = 11,693.91