Finding the Fourth Proportional to 11,094.42, 15,306.32 and 7,117.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,094.42 : 15,306.32 = 7,117.72 : x
2. Step 2: Convert to fraction form
   11,094.42/15,306.32 = 7,117.72/x
3. Step 3: Cross multiply
   11,094.42x = 15,306.32 × 7,117.72
4. Step 4: Simplify right side
   11,094.42x = 108,946,099.99
5. Step 5: Solve for x
   x = 108,946,099.99/11,094.42
6. Step 6: Final answer
   x = 9,819.90