Finding the Fourth Proportional to 42,433.49, 63,642.04 and 40,326.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,433.49 : 63,642.04 = 40,326.08 : x
2. Step 2: Convert to fraction form
   42,433.49/63,642.04 = 40,326.08/x
3. Step 3: Cross multiply
   42,433.49x = 63,642.04 × 40,326.08
4. Step 4: Simplify right side
   42,433.49x = 2,566,433,577.38
5. Step 5: Solve for x
   x = 2,566,433,577.38/42,433.49
6. Step 6: Final answer
   x = 60,481.32