Finding the Fourth Proportional to 5,300.78, 7,307.52 and 3,808.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.78 : 7,307.52 = 3,808.22 : x
2. Step 2: Convert to fraction form
   5,300.78/7,307.52 = 3,808.22/x
3. Step 3: Cross multiply
   5,300.78x = 7,307.52 × 3,808.22
4. Step 4: Simplify right side
   5,300.78x = 27,828,643.81
5. Step 5: Solve for x
   x = 27,828,643.81/5,300.78
6. Step 6: Final answer
   x = 5,249.91