Finding the Fourth Proportional to 325,061.70, 487,592.56 and 207,255.30

Step by Step Solution

1. Step 1: Write the proportion equation
   325,061.70 : 487,592.56 = 207,255.30 : x
2. Step 2: Convert to fraction form
   325,061.70/487,592.56 = 207,255.30/x
3. Step 3: Cross multiply
   325,061.70x = 487,592.56 × 207,255.30
4. Step 4: Simplify right side
   325,061.70x = 101,056,142,300.57
5. Step 5: Solve for x
   x = 101,056,142,300.57/325,061.70
6. Step 6: Final answer
   x = 310,882.96