Finding the Fourth Proportional to 47,870, 71,816.52 and 15,038

Step by Step Solution

1. Step 1: Write the proportion equation
   47,870 : 71,816.52 = 15,038 : x
2. Step 2: Convert to fraction form
   47,870/71,816.52 = 15,038/x
3. Step 3: Cross multiply
   47,870x = 71,816.52 × 15,038
4. Step 4: Simplify right side
   47,870x = 1,079,976,827.76
5. Step 5: Solve for x
   x = 1,079,976,827.76/47,870
6. Step 6: Final answer
   x = 22,560.62