Finding the Fourth Proportional to 39,748.04, 59,624.82 and 13,443.89

Step by Step Solution

1. Step 1: Write the proportion equation
   39,748.04 : 59,624.82 = 13,443.89 : x
2. Step 2: Convert to fraction form
   39,748.04/59,624.82 = 13,443.89/x
3. Step 3: Cross multiply
   39,748.04x = 59,624.82 × 13,443.89
4. Step 4: Simplify right side
   39,748.04x = 801,589,521.35
5. Step 5: Solve for x
   x = 801,589,521.35/39,748.04
6. Step 6: Final answer
   x = 20,166.77