Finding the Fourth Proportional to 60,789.88, 91,193.93 and 21,340.05

Step by Step Solution

1. Step 1: Write the proportion equation
   60,789.88 : 91,193.93 = 21,340.05 : x
2. Step 2: Convert to fraction form
   60,789.88/91,193.93 = 21,340.05/x
3. Step 3: Cross multiply
   60,789.88x = 91,193.93 × 21,340.05
4. Step 4: Simplify right side
   60,789.88x = 1,946,083,025.90
5. Step 5: Solve for x
   x = 1,946,083,025.90/60,789.88
6. Step 6: Final answer
   x = 32,013.27