Finding the Fourth Proportional to 11,743.28, 17,615.01 and 2,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,743.28 : 17,615.01 = 2,978.18 : x
2. Step 2: Convert to fraction form
   11,743.28/17,615.01 = 2,978.18/x
3. Step 3: Cross multiply
   11,743.28x = 17,615.01 × 2,978.18
4. Step 4: Simplify right side
   11,743.28x = 52,460,670.48
5. Step 5: Solve for x
   x = 52,460,670.48/11,743.28
6. Step 6: Final answer
   x = 4,467.29