Finding the Fourth Proportional to 4,781.72, 7,124.52 and 4,513.14

Step by Step Solution

1. Step 1: Write the proportion equation
   4,781.72 : 7,124.52 = 4,513.14 : x
2. Step 2: Convert to fraction form
   4,781.72/7,124.52 = 4,513.14/x
3. Step 3: Cross multiply
   4,781.72x = 7,124.52 × 4,513.14
4. Step 4: Simplify right side
   4,781.72x = 32,153,999.83
5. Step 5: Solve for x
   x = 32,153,999.83/4,781.72
6. Step 6: Final answer
   x = 6,724.36