Finding the Fourth Proportional to 39,778.83, 59,588.34 and 18,401.59

Step by Step Solution

1. Step 1: Write the proportion equation
   39,778.83 : 59,588.34 = 18,401.59 : x
2. Step 2: Convert to fraction form
   39,778.83/59,588.34 = 18,401.59/x
3. Step 3: Cross multiply
   39,778.83x = 59,588.34 × 18,401.59
4. Step 4: Simplify right side
   39,778.83x = 1,096,520,201.46
5. Step 5: Solve for x
   x = 1,096,520,201.46/39,778.83
6. Step 6: Final answer
   x = 27,565.42