Finding the Fourth Proportional to 13,702.98, 18,910.17 and 7,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,702.98 : 18,910.17 = 7,734.72 : x
2. Step 2: Convert to fraction form
   13,702.98/18,910.17 = 7,734.72/x
3. Step 3: Cross multiply
   13,702.98x = 18,910.17 × 7,734.72
4. Step 4: Simplify right side
   13,702.98x = 146,264,870.10
5. Step 5: Solve for x
   x = 146,264,870.10/13,702.98
6. Step 6: Final answer
   x = 10,673.95