Finding the Fourth Proportional to 5,372.88, 7,410.15 and 3,784.77

Step by Step Solution

1. Step 1: Write the proportion equation
   5,372.88 : 7,410.15 = 3,784.77 : x
2. Step 2: Convert to fraction form
   5,372.88/7,410.15 = 3,784.77/x
3. Step 3: Cross multiply
   5,372.88x = 7,410.15 × 3,784.77
4. Step 4: Simplify right side
   5,372.88x = 28,045,713.42
5. Step 5: Solve for x
   x = 28,045,713.42/5,372.88
6. Step 6: Final answer
   x = 5,219.87