Finding the Fourth Proportional to 7,812.59, 10,781.37 and 4,275.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,812.59 : 10,781.37 = 4,275.72 : x
2. Step 2: Convert to fraction form
   7,812.59/10,781.37 = 4,275.72/x
3. Step 3: Cross multiply
   7,812.59x = 10,781.37 × 4,275.72
4. Step 4: Simplify right side
   7,812.59x = 46,098,119.34
5. Step 5: Solve for x
   x = 46,098,119.34/7,812.59
6. Step 6: Final answer
   x = 5,900.50