Finding the Fourth Proportional to 12,445.50, 17,174.79 and 6,856.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.50 : 17,174.79 = 6,856.62 : x
2. Step 2: Convert to fraction form
   12,445.50/17,174.79 = 6,856.62/x
3. Step 3: Cross multiply
   12,445.50x = 17,174.79 × 6,856.62
4. Step 4: Simplify right side
   12,445.50x = 117,761,008.61
5. Step 5: Solve for x
   x = 117,761,008.61/12,445.50
6. Step 6: Final answer
   x = 9,462.14