Finding the Fourth Proportional to 57,900.16, 86,754.84 and 53,058.16

Step by Step Solution

1. Step 1: Write the proportion equation
   57,900.16 : 86,754.84 = 53,058.16 : x
2. Step 2: Convert to fraction form
   57,900.16/86,754.84 = 53,058.16/x
3. Step 3: Cross multiply
   57,900.16x = 86,754.84 × 53,058.16
4. Step 4: Simplify right side
   57,900.16x = 4,603,052,181.49
5. Step 5: Solve for x
   x = 4,603,052,181.49/57,900.16
6. Step 6: Final answer
   x = 79,499.82