Finding the Fourth Proportional to 31,838.62, 47,724.72 and 17,778.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,838.62 : 47,724.72 = 17,778.04 : x
2. Step 2: Convert to fraction form
   31,838.62/47,724.72 = 17,778.04/x
3. Step 3: Cross multiply
   31,838.62x = 47,724.72 × 17,778.04
4. Step 4: Simplify right side
   31,838.62x = 848,451,981.15
5. Step 5: Solve for x
   x = 848,451,981.15/31,838.62
6. Step 6: Final answer
   x = 26,648.52