Finding the Fourth Proportional to 47,915.90, 71,870.49 and 17,924.42

Step by Step Solution

1. Step 1: Write the proportion equation
   47,915.90 : 71,870.49 = 17,924.42 : x
2. Step 2: Convert to fraction form
   47,915.90/71,870.49 = 17,924.42/x
3. Step 3: Cross multiply
   47,915.90x = 71,870.49 × 17,924.42
4. Step 4: Simplify right side
   47,915.90x = 1,288,236,848.37
5. Step 5: Solve for x
   x = 1,288,236,848.37/47,915.90
6. Step 6: Final answer
   x = 26,885.37