Finding the Fourth Proportional to 39,667.61, 59,501.62 and 13,372.58

Step by Step Solution

1. Step 1: Write the proportion equation
   39,667.61 : 59,501.62 = 13,372.58 : x
2. Step 2: Convert to fraction form
   39,667.61/59,501.62 = 13,372.58/x
3. Step 3: Cross multiply
   39,667.61x = 59,501.62 × 13,372.58
4. Step 4: Simplify right side
   39,667.61x = 795,690,173.58
5. Step 5: Solve for x
   x = 795,690,173.58/39,667.61
6. Step 6: Final answer
   x = 20,058.94