Finding the Fourth Proportional to 47,890.56, 71,838.72 and 14,612.88

Step by Step Solution

1. Step 1: Write the proportion equation
   47,890.56 : 71,838.72 = 14,612.88 : x
2. Step 2: Convert to fraction form
   47,890.56/71,838.72 = 14,612.88/x
3. Step 3: Cross multiply
   47,890.56x = 71,838.72 × 14,612.88
4. Step 4: Simplify right side
   47,890.56x = 1,049,770,594.71
5. Step 5: Solve for x
   x = 1,049,770,594.71/47,890.56
6. Step 6: Final answer
   x = 21,920.20