Finding the Fourth Proportional to 21,058.72, 29,061.30 and 11,627.08

Step by Step Solution

1. Step 1: Write the proportion equation
   21,058.72 : 29,061.30 = 11,627.08 : x
2. Step 2: Convert to fraction form
   21,058.72/29,061.30 = 11,627.08/x
3. Step 3: Cross multiply
   21,058.72x = 29,061.30 × 11,627.08
4. Step 4: Simplify right side
   21,058.72x = 337,898,060.00
5. Step 5: Solve for x
   x = 337,898,060.00/21,058.72
6. Step 6: Final answer
   x = 16,045.52