Finding the Fourth Proportional to 42,456.82, 63,677.04 and 40,349.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,456.82 : 63,677.04 = 40,349.47 : x
2. Step 2: Convert to fraction form
   42,456.82/63,677.04 = 40,349.47/x
3. Step 3: Cross multiply
   42,456.82x = 63,677.04 × 40,349.47
4. Step 4: Simplify right side
   42,456.82x = 2,569,334,815.17
5. Step 5: Solve for x
   x = 2,569,334,815.17/42,456.82
6. Step 6: Final answer
   x = 60,516.42