Finding the Fourth Proportional to 6,116.21, 8,437.80 and 4,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,116.21 : 8,437.80 = 4,123.31 : x
2. Step 2: Convert to fraction form
   6,116.21/8,437.80 = 4,123.31/x
3. Step 3: Cross multiply
   6,116.21x = 8,437.80 × 4,123.31
4. Step 4: Simplify right side
   6,116.21x = 34,791,665.12
5. Step 5: Solve for x
   x = 34,791,665.12/6,116.21
6. Step 6: Final answer
   x = 5,688.44