Finding the Fourth Proportional to 13,111.72, 18,092.61 and 7,446.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.72 : 18,092.61 = 7,446.43 : x
2. Step 2: Convert to fraction form
   13,111.72/18,092.61 = 7,446.43/x
3. Step 3: Cross multiply
   13,111.72x = 18,092.61 × 7,446.43
4. Step 4: Simplify right side
   13,111.72x = 134,725,353.88
5. Step 5: Solve for x
   x = 134,725,353.88/13,111.72
6. Step 6: Final answer
   x = 10,275.19