Finding the Fourth Proportional to 31,574.90, 47,364.90 and 10,514.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,574.90 : 47,364.90 = 10,514.18 : x
2. Step 2: Convert to fraction form
   31,574.90/47,364.90 = 10,514.18/x
3. Step 3: Cross multiply
   31,574.90x = 47,364.90 × 10,514.18
4. Step 4: Simplify right side
   31,574.90x = 498,003,084.28
5. Step 5: Solve for x
   x = 498,003,084.28/31,574.90
6. Step 6: Final answer
   x = 15,772.12