Finding the Fourth Proportional to 6,178.78, 8,526.72 and 3,526.13

Step by Step Solution

1. Step 1: Write the proportion equation
   6,178.78 : 8,526.72 = 3,526.13 : x
2. Step 2: Convert to fraction form
   6,178.78/8,526.72 = 3,526.13/x
3. Step 3: Cross multiply
   6,178.78x = 8,526.72 × 3,526.13
4. Step 4: Simplify right side
   6,178.78x = 30,066,337.90
5. Step 5: Solve for x
   x = 30,066,337.90/6,178.78
6. Step 6: Final answer
   x = 4,866.06