Finding the Fourth Proportional to 13,101, 18,079.54 and 7,132.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101 : 18,079.54 = 7,132.56 : x
2. Step 2: Convert to fraction form
   13,101/18,079.54 = 7,132.56/x
3. Step 3: Cross multiply
   13,101x = 18,079.54 × 7,132.56
4. Step 4: Simplify right side
   13,101x = 128,953,403.82
5. Step 5: Solve for x
   x = 128,953,403.82/13,101
6. Step 6: Final answer
   x = 9,843.02