Finding the Fourth Proportional to 3,787.31, 5,672.15 and 3,655.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787.31 : 5,672.15 = 3,655.94 : x
2. Step 2: Convert to fraction form
   3,787.31/5,672.15 = 3,655.94/x
3. Step 3: Cross multiply
   3,787.31x = 5,672.15 × 3,655.94
4. Step 4: Simplify right side
   3,787.31x = 20,737,063.39
5. Step 5: Solve for x
   x = 20,737,063.39/3,787.31
6. Step 6: Final answer
   x = 5,475.40