Finding the Fourth Proportional to 5,822.02, 8,688.29 and 5,199.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,822.02 : 8,688.29 = 5,199.22 : x
2. Step 2: Convert to fraction form
   5,822.02/8,688.29 = 5,199.22/x
3. Step 3: Cross multiply
   5,822.02x = 8,688.29 × 5,199.22
4. Step 4: Simplify right side
   5,822.02x = 45,172,300.69
5. Step 5: Solve for x
   x = 45,172,300.69/5,822.02
6. Step 6: Final answer
   x = 7,758.88