Finding the Fourth Proportional to 42,212.56, 63,181.48 and 31,114.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,212.56 : 63,181.48 = 31,114.80 : x
2. Step 2: Convert to fraction form
   42,212.56/63,181.48 = 31,114.80/x
3. Step 3: Cross multiply
   42,212.56x = 63,181.48 × 31,114.80
4. Step 4: Simplify right side
   42,212.56x = 1,965,879,113.90
5. Step 5: Solve for x
   x = 1,965,879,113.90/42,212.56
6. Step 6: Final answer
   x = 46,570.95