Finding the Fourth Proportional to 11,356.65, 15,663.29 and 7,379.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,356.65 : 15,663.29 = 7,379.04 : x
2. Step 2: Convert to fraction form
   11,356.65/15,663.29 = 7,379.04/x
3. Step 3: Cross multiply
   11,356.65x = 15,663.29 × 7,379.04
4. Step 4: Simplify right side
   11,356.65x = 115,580,061.89
5. Step 5: Solve for x
   x = 115,580,061.89/11,356.65
6. Step 6: Final answer
   x = 10,177.30