Finding the Fourth Proportional to 11,869.74, 17,801.51 and 3,547.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,869.74 : 17,801.51 = 3,547.89 : x
2. Step 2: Convert to fraction form
   11,869.74/17,801.51 = 3,547.89/x
3. Step 3: Cross multiply
   11,869.74x = 17,801.51 × 3,547.89
4. Step 4: Simplify right side
   11,869.74x = 63,157,781.57
5. Step 5: Solve for x
   x = 63,157,781.57/11,869.74
6. Step 6: Final answer
   x = 5,320.91