Finding the Fourth Proportional to 21,271.07, 31,907.05 and 5,688.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,271.07 : 31,907.05 = 5,688.56 : x
2. Step 2: Convert to fraction form
   21,271.07/31,907.05 = 5,688.56/x
3. Step 3: Cross multiply
   21,271.07x = 31,907.05 × 5,688.56
4. Step 4: Simplify right side
   21,271.07x = 181,505,233.89
5. Step 5: Solve for x
   x = 181,505,233.89/21,271.07
6. Step 6: Final answer
   x = 8,532.96