Finding the Fourth Proportional to 7,064.56, 9,748.75 and 3,877.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,064.56 : 9,748.75 = 3,877.78 : x
2. Step 2: Convert to fraction form
   7,064.56/9,748.75 = 3,877.78/x
3. Step 3: Cross multiply
   7,064.56x = 9,748.75 × 3,877.78
4. Step 4: Simplify right side
   7,064.56x = 37,803,507.78
5. Step 5: Solve for x
   x = 37,803,507.78/7,064.56
6. Step 6: Final answer
   x = 5,351.15