Finding the Fourth Proportional to 40,523.34, 60,761.00 and 13,859.90

Step by Step Solution

1. Step 1: Write the proportion equation
   40,523.34 : 60,761.00 = 13,859.90 : x
2. Step 2: Convert to fraction form
   40,523.34/60,761.00 = 13,859.90/x
3. Step 3: Cross multiply
   40,523.34x = 60,761.00 × 13,859.90
4. Step 4: Simplify right side
   40,523.34x = 842,141,010.80
5. Step 5: Solve for x
   x = 842,141,010.80/40,523.34
6. Step 6: Final answer
   x = 20,781.63