Finding the Fourth Proportional to 8,703.72, 12,012.30 and 5,345.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,703.72 : 12,012.30 = 5,345.82 : x
2. Step 2: Convert to fraction form
   8,703.72/12,012.30 = 5,345.82/x
3. Step 3: Cross multiply
   8,703.72x = 12,012.30 × 5,345.82
4. Step 4: Simplify right side
   8,703.72x = 64,215,593.59
5. Step 5: Solve for x
   x = 64,215,593.59/8,703.72
6. Step 6: Final answer
   x = 7,377.95