Finding the Fourth Proportional to 12,764.72, 17,612.71 and 7,458.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,764.72 : 17,612.71 = 7,458.51 : x
2. Step 2: Convert to fraction form
   12,764.72/17,612.71 = 7,458.51/x
3. Step 3: Cross multiply
   12,764.72x = 17,612.71 × 7,458.51
4. Step 4: Simplify right side
   12,764.72x = 131,364,555.02
5. Step 5: Solve for x
   x = 131,364,555.02/12,764.72
6. Step 6: Final answer
   x = 10,291.22