Finding the Fourth Proportional to 10,274.76, 15,417.01 and 7,117.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.76 : 15,417.01 = 7,117.05 : x
2. Step 2: Convert to fraction form
   10,274.76/15,417.01 = 7,117.05/x
3. Step 3: Cross multiply
   10,274.76x = 15,417.01 × 7,117.05
4. Step 4: Simplify right side
   10,274.76x = 109,723,613.23
5. Step 5: Solve for x
   x = 109,723,613.23/10,274.76
6. Step 6: Final answer
   x = 10,678.95