Finding the Fourth Proportional to 56,926.27, 78,560.88 and 31,436.23

Step by Step Solution

1. Step 1: Write the proportion equation
   56,926.27 : 78,560.88 = 31,436.23 : x
2. Step 2: Convert to fraction form
   56,926.27/78,560.88 = 31,436.23/x
3. Step 3: Cross multiply
   56,926.27x = 78,560.88 × 31,436.23
4. Step 4: Simplify right side
   56,926.27x = 2,469,657,892.68
5. Step 5: Solve for x
   x = 2,469,657,892.68/56,926.27
6. Step 6: Final answer
   x = 43,383.45