Finding the Fourth Proportional to 13,047.79, 19,574.72 and 4,282.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.79 : 19,574.72 = 4,282.17 : x
2. Step 2: Convert to fraction form
   13,047.79/19,574.72 = 4,282.17/x
3. Step 3: Cross multiply
   13,047.79x = 19,574.72 × 4,282.17
4. Step 4: Simplify right side
   13,047.79x = 83,822,257.33
5. Step 5: Solve for x
   x = 83,822,257.33/13,047.79
6. Step 6: Final answer
   x = 6,424.25