Finding the Fourth Proportional to 21,173.86, 31,762.34 and 7,133.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,173.86 : 31,762.34 = 7,133.82 : x
2. Step 2: Convert to fraction form
   21,173.86/31,762.34 = 7,133.82/x
3. Step 3: Cross multiply
   21,173.86x = 31,762.34 × 7,133.82
4. Step 4: Simplify right side
   21,173.86x = 226,586,816.34
5. Step 5: Solve for x
   x = 226,586,816.34/21,173.86
6. Step 6: Final answer
   x = 10,701.25