Finding the Fourth Proportional to 81,429.57, 122,124.71 and 34,019.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,429.57 : 122,124.71 = 34,019.06 : x
2. Step 2: Convert to fraction form
   81,429.57/122,124.71 = 34,019.06/x
3. Step 3: Cross multiply
   81,429.57x = 122,124.71 × 34,019.06
4. Step 4: Simplify right side
   81,429.57x = 4,154,567,311.40
5. Step 5: Solve for x
   x = 4,154,567,311.40/81,429.57
6. Step 6: Final answer
   x = 51,020.38