Finding the Fourth Proportional to 12,152.05, 16,772.33 and 7,118.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,152.05 : 16,772.33 = 7,118.91 : x
2. Step 2: Convert to fraction form
   12,152.05/16,772.33 = 7,118.91/x
3. Step 3: Cross multiply
   12,152.05x = 16,772.33 × 7,118.91
4. Step 4: Simplify right side
   12,152.05x = 119,400,707.76
5. Step 5: Solve for x
   x = 119,400,707.76/12,152.05
6. Step 6: Final answer
   x = 9,825.56