Finding the Fourth Proportional to 56,913.27, 78,540.52 and 31,419.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,913.27 : 78,540.52 = 31,419.82 : x
2. Step 2: Convert to fraction form
   56,913.27/78,540.52 = 31,419.82/x
3. Step 3: Cross multiply
   56,913.27x = 78,540.52 × 31,419.82
4. Step 4: Simplify right side
   56,913.27x = 2,467,729,001.11
5. Step 5: Solve for x
   x = 2,467,729,001.11/56,913.27
6. Step 6: Final answer
   x = 43,359.47