Finding the Fourth Proportional to 11,748.18, 17,620.56 and 3,425.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.18 : 17,620.56 = 3,425.96 : x
2. Step 2: Convert to fraction form
   11,748.18/17,620.56 = 3,425.96/x
3. Step 3: Cross multiply
   11,748.18x = 17,620.56 × 3,425.96
4. Step 4: Simplify right side
   11,748.18x = 60,367,316.61
5. Step 5: Solve for x
   x = 60,367,316.61/11,748.18
6. Step 6: Final answer
   x = 5,138.44