Finding the Fourth Proportional to 11,853.99, 17,785.17 and 5,279.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,853.99 : 17,785.17 = 5,279.58 : x
2. Step 2: Convert to fraction form
   11,853.99/17,785.17 = 5,279.58/x
3. Step 3: Cross multiply
   11,853.99x = 17,785.17 × 5,279.58
4. Step 4: Simplify right side
   11,853.99x = 93,898,227.83
5. Step 5: Solve for x
   x = 93,898,227.83/11,853.99
6. Step 6: Final answer
   x = 7,921.23