Finding the Fourth Proportional to 11,670.89, 17,508.15 and 3,877.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,670.89 : 17,508.15 = 3,877.88 : x
2. Step 2: Convert to fraction form
   11,670.89/17,508.15 = 3,877.88/x
3. Step 3: Cross multiply
   11,670.89x = 17,508.15 × 3,877.88
4. Step 4: Simplify right side
   11,670.89x = 67,894,417.18
5. Step 5: Solve for x
   x = 67,894,417.18/11,670.89
6. Step 6: Final answer
   x = 5,817.42