Finding the Fourth Proportional to 60,894.72, 91,340.01 and 21,450.80

Step by Step Solution

1. Step 1: Write the proportion equation
   60,894.72 : 91,340.01 = 21,450.80 : x
2. Step 2: Convert to fraction form
   60,894.72/91,340.01 = 21,450.80/x
3. Step 3: Cross multiply
   60,894.72x = 91,340.01 × 21,450.80
4. Step 4: Simplify right side
   60,894.72x = 1,959,315,829.81
5. Step 5: Solve for x
   x = 1,959,315,829.81/60,894.72
6. Step 6: Final answer
   x = 32,175.46