Finding the Fourth Proportional to 10,888.56, 15,005.13 and 7,345.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,888.56 : 15,005.13 = 7,345.62 : x
2. Step 2: Convert to fraction form
   10,888.56/15,005.13 = 7,345.62/x
3. Step 3: Cross multiply
   10,888.56x = 15,005.13 × 7,345.62
4. Step 4: Simplify right side
   10,888.56x = 110,221,983.03
5. Step 5: Solve for x
   x = 110,221,983.03/10,888.56
6. Step 6: Final answer
   x = 10,122.73