Finding the Fourth Proportional to 11,746.89, 17,621.15 and 3,426.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,746.89 : 17,621.15 = 3,426.98 : x
2. Step 2: Convert to fraction form
   11,746.89/17,621.15 = 3,426.98/x
3. Step 3: Cross multiply
   11,746.89x = 17,621.15 × 3,426.98
4. Step 4: Simplify right side
   11,746.89x = 60,387,223.39
5. Step 5: Solve for x
   x = 60,387,223.39/11,746.89
6. Step 6: Final answer
   x = 5,140.70