Finding the Fourth Proportional to 10,969.43, 15,127.02 and 10,058.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,969.43 : 15,127.02 = 10,058.78 : x
2. Step 2: Convert to fraction form
   10,969.43/15,127.02 = 10,058.78/x
3. Step 3: Cross multiply
   10,969.43x = 15,127.02 × 10,058.78
4. Step 4: Simplify right side
   10,969.43x = 152,159,404.05
5. Step 5: Solve for x
   x = 152,159,404.05/10,969.43
6. Step 6: Final answer
   x = 13,871.23