Finding the Fourth Proportional to 6,900.78, 9,523.20 and 3,757.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,900.78 : 9,523.20 = 3,757.02 : x
2. Step 2: Convert to fraction form
   6,900.78/9,523.20 = 3,757.02/x
3. Step 3: Cross multiply
   6,900.78x = 9,523.20 × 3,757.02
4. Step 4: Simplify right side
   6,900.78x = 35,778,852.86
5. Step 5: Solve for x
   x = 35,778,852.86/6,900.78
6. Step 6: Final answer
   x = 5,184.75