Finding the Fourth Proportional to 13,980.76, 19,294.25 and 8,013.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,980.76 : 19,294.25 = 8,013.43 : x
2. Step 2: Convert to fraction form
   13,980.76/19,294.25 = 8,013.43/x
3. Step 3: Cross multiply
   13,980.76x = 19,294.25 × 8,013.43
4. Step 4: Simplify right side
   13,980.76x = 154,613,025.31
5. Step 5: Solve for x
   x = 154,613,025.31/13,980.76
6. Step 6: Final answer
   x = 11,058.98