Finding the Fourth Proportional to 60,900.05, 91,347.95 and 21,456.29

Step by Step Solution

1. Step 1: Write the proportion equation
   60,900.05 : 91,347.95 = 21,456.29 : x
2. Step 2: Convert to fraction form
   60,900.05/91,347.95 = 21,456.29/x
3. Step 3: Cross multiply
   60,900.05x = 91,347.95 × 21,456.29
4. Step 4: Simplify right side
   60,900.05x = 1,959,988,388.12
5. Step 5: Solve for x
   x = 1,959,988,388.12/60,900.05
6. Step 6: Final answer
   x = 32,183.69