Finding the Fourth Proportional to 56,616.09, 78,141.53 and 43,163.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,616.09 : 78,141.53 = 43,163.31 : x
2. Step 2: Convert to fraction form
   56,616.09/78,141.53 = 43,163.31/x
3. Step 3: Cross multiply
   56,616.09x = 78,141.53 × 43,163.31
4. Step 4: Simplify right side
   56,616.09x = 3,372,846,867.45
5. Step 5: Solve for x
   x = 3,372,846,867.45/56,616.09
6. Step 6: Final answer
   x = 59,574.00