Finding the Fourth Proportional to 42,667.08, 63,998.82 and 13,083.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,667.08 : 63,998.82 = 13,083.36 : x
2. Step 2: Convert to fraction form
   42,667.08/63,998.82 = 13,083.36/x
3. Step 3: Cross multiply
   42,667.08x = 63,998.82 × 13,083.36
4. Step 4: Simplify right side
   42,667.08x = 837,319,601.64
5. Step 5: Solve for x
   x = 837,319,601.64/42,667.08
6. Step 6: Final answer
   x = 19,624.49