Finding the Fourth Proportional to 11,385.68, 17,085.72 and 4,460

Step by Step Solution

1. Step 1: Write the proportion equation
   11,385.68 : 17,085.72 = 4,460 : x
2. Step 2: Convert to fraction form
   11,385.68/17,085.72 = 4,460/x
3. Step 3: Cross multiply
   11,385.68x = 17,085.72 × 4,460
4. Step 4: Simplify right side
   11,385.68x = 76,202,311.20
5. Step 5: Solve for x
   x = 76,202,311.20/11,385.68
6. Step 6: Final answer
   x = 6,692.82