Finding the Fourth Proportional to 65,257.56, 90,092.74 and 42,966.36

Step by Step Solution

1. Step 1: Write the proportion equation
   65,257.56 : 90,092.74 = 42,966.36 : x
2. Step 2: Convert to fraction form
   65,257.56/90,092.74 = 42,966.36/x
3. Step 3: Cross multiply
   65,257.56x = 90,092.74 × 42,966.36
4. Step 4: Simplify right side
   65,257.56x = 3,870,957,100.23
5. Step 5: Solve for x
   x = 3,870,957,100.23/65,257.56
6. Step 6: Final answer
   x = 59,318.14