Finding the Fourth Proportional to 65,293.72, 90,058.66 and 59,933.18

Step by Step Solution

1. Step 1: Write the proportion equation
   65,293.72 : 90,058.66 = 59,933.18 : x
2. Step 2: Convert to fraction form
   65,293.72/90,058.66 = 59,933.18/x
3. Step 3: Cross multiply
   65,293.72x = 90,058.66 × 59,933.18
4. Step 4: Simplify right side
   65,293.72x = 5,397,501,130.38
5. Step 5: Solve for x
   x = 5,397,501,130.38/65,293.72
6. Step 6: Final answer
   x = 82,664.94