Finding the Fourth Proportional to 21,064.32, 31,596.54 and 5,481.93

Step by Step Solution

1. Step 1: Write the proportion equation
   21,064.32 : 31,596.54 = 5,481.93 : x
2. Step 2: Convert to fraction form
   21,064.32/31,596.54 = 5,481.93/x
3. Step 3: Cross multiply
   21,064.32x = 31,596.54 × 5,481.93
4. Step 4: Simplify right side
   21,064.32x = 173,210,020.52
5. Step 5: Solve for x
   x = 173,210,020.52/21,064.32
6. Step 6: Final answer
   x = 8,222.91