Finding the Fourth Proportional to 31,641.18, 47,446.28 and 10,574.00

Step by Step Solution

1. Step 1: Write the proportion equation
   31,641.18 : 47,446.28 = 10,574.00 : x
2. Step 2: Convert to fraction form
   31,641.18/47,446.28 = 10,574.00/x
3. Step 3: Cross multiply
   31,641.18x = 47,446.28 × 10,574.00
4. Step 4: Simplify right side
   31,641.18x = 501,696,674.62
5. Step 5: Solve for x
   x = 501,696,674.62/31,641.18
6. Step 6: Final answer
   x = 15,855.81