Finding the Fourth Proportional to 21,141, 31,711.76 and 10,048.76

Step by Step Solution

1. Step 1: Write the proportion equation
   21,141 : 31,711.76 = 10,048.76 : x
2. Step 2: Convert to fraction form
   21,141/31,711.76 = 10,048.76/x
3. Step 3: Cross multiply
   21,141x = 31,711.76 × 10,048.76
4. Step 4: Simplify right side
   21,141x = 318,663,865.42
5. Step 5: Solve for x
   x = 318,663,865.42/21,141
6. Step 6: Final answer
   x = 15,073.26