Finding the Fourth Proportional to 10,932.22, 15,069 and 7,389.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,932.22 : 15,069 = 7,389.28 : x
2. Step 2: Convert to fraction form
   10,932.22/15,069 = 7,389.28/x
3. Step 3: Cross multiply
   10,932.22x = 15,069 × 7,389.28
4. Step 4: Simplify right side
   10,932.22x = 111,349,060.32
5. Step 5: Solve for x
   x = 111,349,060.32/10,932.22
6. Step 6: Final answer
   x = 10,185.40