Finding the Fourth Proportional to 60,878.16, 84,015.18 and 34,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,878.16 : 84,015.18 = 34,020.72 : x
2. Step 2: Convert to fraction form
   60,878.16/84,015.18 = 34,020.72/x
3. Step 3: Cross multiply
   60,878.16x = 84,015.18 × 34,020.72
4. Step 4: Simplify right side
   60,878.16x = 2,858,256,914.53
5. Step 5: Solve for x
   x = 2,858,256,914.53/60,878.16
6. Step 6: Final answer
   x = 46,950.45