Finding the Fourth Proportional to 10,935.66, 15,079.29 and 7,392.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,935.66 : 15,079.29 = 7,392.72 : x
2. Step 2: Convert to fraction form
   10,935.66/15,079.29 = 7,392.72/x
3. Step 3: Cross multiply
   10,935.66x = 15,079.29 × 7,392.72
4. Step 4: Simplify right side
   10,935.66x = 111,476,933.56
5. Step 5: Solve for x
   x = 111,476,933.56/10,935.66
6. Step 6: Final answer
   x = 10,193.89