Finding the Fourth Proportional to 56,853, 78,458.76 and 31,704.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,853 : 78,458.76 = 31,704.12 : x
2. Step 2: Convert to fraction form
   56,853/78,458.76 = 31,704.12/x
3. Step 3: Cross multiply
   56,853x = 78,458.76 × 31,704.12
4. Step 4: Simplify right side
   56,853x = 2,487,465,942.09
5. Step 5: Solve for x
   x = 2,487,465,942.09/56,853
6. Step 6: Final answer
   x = 43,752.59