Finding the Fourth Proportional to 61,429.78, 84,772.89 and 34,572.34

Step by Step Solution

1. Step 1: Write the proportion equation
   61,429.78 : 84,772.89 = 34,572.34 : x
2. Step 2: Convert to fraction form
   61,429.78/84,772.89 = 34,572.34/x
3. Step 3: Cross multiply
   61,429.78x = 84,772.89 × 34,572.34
4. Step 4: Simplify right side
   61,429.78x = 2,930,797,175.86
5. Step 5: Solve for x
   x = 2,930,797,175.86/61,429.78
6. Step 6: Final answer
   x = 47,709.71