Finding the Fourth Proportional to 6,111.72, 8,434.50 and 3,459.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.72 : 8,434.50 = 3,459.72 : x
2. Step 2: Convert to fraction form
   6,111.72/8,434.50 = 3,459.72/x
3. Step 3: Cross multiply
   6,111.72x = 8,434.50 × 3,459.72
4. Step 4: Simplify right side
   6,111.72x = 29,181,008.34
5. Step 5: Solve for x
   x = 29,181,008.34/6,111.72
6. Step 6: Final answer
   x = 4,774.60