Finding the Fourth Proportional to 11,708.34, 17,558.86 and 3,915.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,708.34 : 17,558.86 = 3,915.34 : x
2. Step 2: Convert to fraction form
   11,708.34/17,558.86 = 3,915.34/x
3. Step 3: Cross multiply
   11,708.34x = 17,558.86 × 3,915.34
4. Step 4: Simplify right side
   11,708.34x = 68,748,906.91
5. Step 5: Solve for x
   x = 68,748,906.91/11,708.34
6. Step 6: Final answer
   x = 5,871.79