Finding the Fourth Proportional to 57,896.69, 79,897.43 and 31,400.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,896.69 : 79,897.43 = 31,400.69 : x
2. Step 2: Convert to fraction form
   57,896.69/79,897.43 = 31,400.69/x
3. Step 3: Cross multiply
   57,896.69x = 79,897.43 × 31,400.69
4. Step 4: Simplify right side
   57,896.69x = 2,508,834,431.23
5. Step 5: Solve for x
   x = 2,508,834,431.23/57,896.69
6. Step 6: Final answer
   x = 43,332.95