Finding the Fourth Proportional to 13,152.72, 18,150.72 and 7,850.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,152.72 : 18,150.72 = 7,850.58 : x
2. Step 2: Convert to fraction form
   13,152.72/18,150.72 = 7,850.58/x
3. Step 3: Cross multiply
   13,152.72x = 18,150.72 × 7,850.58
4. Step 4: Simplify right side
   13,152.72x = 142,493,679.42
5. Step 5: Solve for x
   x = 142,493,679.42/13,152.72
6. Step 6: Final answer
   x = 10,833.78