Finding the Fourth Proportional to 56,766.76, 78,340.56 and 31,616.24

Step by Step Solution

1. Step 1: Write the proportion equation
   56,766.76 : 78,340.56 = 31,616.24 : x
2. Step 2: Convert to fraction form
   56,766.76/78,340.56 = 31,616.24/x
3. Step 3: Cross multiply
   56,766.76x = 78,340.56 × 31,616.24
4. Step 4: Simplify right side
   56,766.76x = 2,476,833,946.69
5. Step 5: Solve for x
   x = 2,476,833,946.69/56,766.76
6. Step 6: Final answer
   x = 43,631.77