Finding the Fourth Proportional to 56,989.56, 78,644.04 and 31,839.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,989.56 : 78,644.04 = 31,839.06 : x
2. Step 2: Convert to fraction form
   56,989.56/78,644.04 = 31,839.06/x
3. Step 3: Cross multiply
   56,989.56x = 78,644.04 × 31,839.06
4. Step 4: Simplify right side
   56,989.56x = 2,503,952,308.20
5. Step 5: Solve for x
   x = 2,503,952,308.20/56,989.56
6. Step 6: Final answer
   x = 43,937.04