Finding the Fourth Proportional to 39,667.83, 59,472.58 and 18,905.91

Step by Step Solution

1. Step 1: Write the proportion equation
   39,667.83 : 59,472.58 = 18,905.91 : x
2. Step 2: Convert to fraction form
   39,667.83/59,472.58 = 18,905.91/x
3. Step 3: Cross multiply
   39,667.83x = 59,472.58 × 18,905.91
4. Step 4: Simplify right side
   39,667.83x = 1,124,383,244.95
5. Step 5: Solve for x
   x = 1,124,383,244.95/39,667.83
6. Step 6: Final answer
   x = 28,344.96