Finding the Fourth Proportional to 13,282.79, 19,925.40 and 3,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,282.79 : 19,925.40 = 3,422.10 : x
2. Step 2: Convert to fraction form
   13,282.79/19,925.40 = 3,422.10/x
3. Step 3: Cross multiply
   13,282.79x = 19,925.40 × 3,422.10
4. Step 4: Simplify right side
   13,282.79x = 68,186,711.34
5. Step 5: Solve for x
   x = 68,186,711.34/13,282.79
6. Step 6: Final answer
   x = 5,133.46