Finding the Fourth Proportional to 56,823.56, 78,450.15 and 50,518.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,823.56 : 78,450.15 = 50,518.52 : x
2. Step 2: Convert to fraction form
   56,823.56/78,450.15 = 50,518.52/x
3. Step 3: Cross multiply
   56,823.56x = 78,450.15 × 50,518.52
4. Step 4: Simplify right side
   56,823.56x = 3,963,185,275.65
5. Step 5: Solve for x
   x = 3,963,185,275.65/56,823.56
6. Step 6: Final answer
   x = 69,745.46