Finding the Fourth Proportional to 12,152.18, 18,230.24 and 5,133.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,152.18 : 18,230.24 = 5,133.25 : x
2. Step 2: Convert to fraction form
   12,152.18/18,230.24 = 5,133.25/x
3. Step 3: Cross multiply
   12,152.18x = 18,230.24 × 5,133.25
4. Step 4: Simplify right side
   12,152.18x = 93,580,353.81
5. Step 5: Solve for x
   x = 93,580,353.81/12,152.18
6. Step 6: Final answer
   x = 7,700.71