Finding the Fourth Proportional to 6,111.60, 9,171.90 and 4,132.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.60 : 9,171.90 = 4,132.56 : x
2. Step 2: Convert to fraction form
   6,111.60/9,171.90 = 4,132.56/x
3. Step 3: Cross multiply
   6,111.60x = 9,171.90 × 4,132.56
4. Step 4: Simplify right side
   6,111.60x = 37,903,427.06
5. Step 5: Solve for x
   x = 37,903,427.06/6,111.60
6. Step 6: Final answer
   x = 6,201.88