Finding the Fourth Proportional to 11,698.48, 17,546.28 and 5,123.44

Step by Step Solution

1. Step 1: Write the proportion equation
   11,698.48 : 17,546.28 = 5,123.44 : x
2. Step 2: Convert to fraction form
   11,698.48/17,546.28 = 5,123.44/x
3. Step 3: Cross multiply
   11,698.48x = 17,546.28 × 5,123.44
4. Step 4: Simplify right side
   11,698.48x = 89,897,312.80
5. Step 5: Solve for x
   x = 89,897,312.80/11,698.48
6. Step 6: Final answer
   x = 7,684.53