Finding the Fourth Proportional to 7,266.61, 10,028.94 and 4,242.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,266.61 : 10,028.94 = 4,242.72 : x
2. Step 2: Convert to fraction form
   7,266.61/10,028.94 = 4,242.72/x
3. Step 3: Cross multiply
   7,266.61x = 10,028.94 × 4,242.72
4. Step 4: Simplify right side
   7,266.61x = 42,549,984.32
5. Step 5: Solve for x
   x = 42,549,984.32/7,266.61
6. Step 6: Final answer
   x = 5,855.55