Finding the Fourth Proportional to 11,100.70, 16,659.15 and 7,401.70

Step by Step Solution

1. Step 1: Write the proportion equation
   11,100.70 : 16,659.15 = 7,401.70 : x
2. Step 2: Convert to fraction form
   11,100.70/16,659.15 = 7,401.70/x
3. Step 3: Cross multiply
   11,100.70x = 16,659.15 × 7,401.70
4. Step 4: Simplify right side
   11,100.70x = 123,306,030.56
5. Step 5: Solve for x
   x = 123,306,030.56/11,100.70
6. Step 6: Final answer
   x = 11,107.95