Finding the Fourth Proportional to 12,529.74, 17,290.86 and 7,152

Step by Step Solution

1. Step 1: Write the proportion equation
   12,529.74 : 17,290.86 = 7,152 : x
2. Step 2: Convert to fraction form
   12,529.74/17,290.86 = 7,152/x
3. Step 3: Cross multiply
   12,529.74x = 17,290.86 × 7,152
4. Step 4: Simplify right side
   12,529.74x = 123,664,230.72
5. Step 5: Solve for x
   x = 123,664,230.72/12,529.74
6. Step 6: Final answer
   x = 9,869.66