Finding the Fourth Proportional to 5,428.59, 7,487.34 and 3,941.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,428.59 : 7,487.34 = 3,941.43 : x
2. Step 2: Convert to fraction form
   5,428.59/7,487.34 = 3,941.43/x
3. Step 3: Cross multiply
   5,428.59x = 7,487.34 × 3,941.43
4. Step 4: Simplify right side
   5,428.59x = 29,510,826.50
5. Step 5: Solve for x
   x = 29,510,826.50/5,428.59
6. Step 6: Final answer
   x = 5,436.19