Finding the Fourth Proportional to 56,837.07, 78,439.83 and 31,348.42

Step by Step Solution

1. Step 1: Write the proportion equation
   56,837.07 : 78,439.83 = 31,348.42 : x
2. Step 2: Convert to fraction form
   56,837.07/78,439.83 = 31,348.42/x
3. Step 3: Cross multiply
   56,837.07x = 78,439.83 × 31,348.42
4. Step 4: Simplify right side
   56,837.07x = 2,458,964,480.78
5. Step 5: Solve for x
   x = 2,458,964,480.78/56,837.07
6. Step 6: Final answer
   x = 43,263.39