Finding the Fourth Proportional to 11,818.70, 17,731.52 and 3,498.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,818.70 : 17,731.52 = 3,498.93 : x
2. Step 2: Convert to fraction form
   11,818.70/17,731.52 = 3,498.93/x
3. Step 3: Cross multiply
   11,818.70x = 17,731.52 × 3,498.93
4. Step 4: Simplify right side
   11,818.70x = 62,041,347.27
5. Step 5: Solve for x
   x = 62,041,347.27/11,818.70
6. Step 6: Final answer
   x = 5,249.42