Finding the Fourth Proportional to 47,392.74, 71,095.59 and 21,096.90

Step by Step Solution

1. Step 1: Write the proportion equation
   47,392.74 : 71,095.59 = 21,096.90 : x
2. Step 2: Convert to fraction form
   47,392.74/71,095.59 = 21,096.90/x
3. Step 3: Cross multiply
   47,392.74x = 71,095.59 × 21,096.90
4. Step 4: Simplify right side
   47,392.74x = 1,499,896,552.67
5. Step 5: Solve for x
   x = 1,499,896,552.67/47,392.74
6. Step 6: Final answer
   x = 31,648.23