Finding the Fourth Proportional to 21,141.50, 31,713.01 and 7,101.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,141.50 : 31,713.01 = 7,101.98 : x
2. Step 2: Convert to fraction form
   21,141.50/31,713.01 = 7,101.98/x
3. Step 3: Cross multiply
   21,141.50x = 31,713.01 × 7,101.98
4. Step 4: Simplify right side
   21,141.50x = 225,225,224.29
5. Step 5: Solve for x
   x = 225,225,224.29/21,141.50
6. Step 6: Final answer
   x = 10,653.23