Finding the Fourth Proportional to 57,011.69, 78,697.28 and 34,351.94

Step by Step Solution

1. Step 1: Write the proportion equation
   57,011.69 : 78,697.28 = 34,351.94 : x
2. Step 2: Convert to fraction form
   57,011.69/78,697.28 = 34,351.94/x
3. Step 3: Cross multiply
   57,011.69x = 78,697.28 × 34,351.94
4. Step 4: Simplify right side
   57,011.69x = 2,703,404,265.71
5. Step 5: Solve for x
   x = 2,703,404,265.71/57,011.69
6. Step 6: Final answer
   x = 47,418.42