Finding the Fourth Proportional to 42,378.39, 63,567.96 and 10,788.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,378.39 : 63,567.96 = 10,788.48 : x
2. Step 2: Convert to fraction form
   42,378.39/63,567.96 = 10,788.48/x
3. Step 3: Cross multiply
   42,378.39x = 63,567.96 × 10,788.48
4. Step 4: Simplify right side
   42,378.39x = 685,801,665.10
5. Step 5: Solve for x
   x = 685,801,665.10/42,378.39
6. Step 6: Final answer
   x = 16,182.82