Finding the Fourth Proportional to 56,778.45, 78,354.18 and 31,627.95

Step by Step Solution

1. Step 1: Write the proportion equation
   56,778.45 : 78,354.18 = 31,627.95 : x
2. Step 2: Convert to fraction form
   56,778.45/78,354.18 = 31,627.95/x
3. Step 3: Cross multiply
   56,778.45x = 78,354.18 × 31,627.95
4. Step 4: Simplify right side
   56,778.45x = 2,478,182,087.33
5. Step 5: Solve for x
   x = 2,478,182,087.33/56,778.45
6. Step 6: Final answer
   x = 43,646.53