Finding the Fourth Proportional to 146,019.34, 219,028.38 and 57,210.13

Step by Step Solution

1. Step 1: Write the proportion equation
   146,019.34 : 219,028.38 = 57,210.13 : x
2. Step 2: Convert to fraction form
   146,019.34/219,028.38 = 57,210.13/x
3. Step 3: Cross multiply
   146,019.34x = 219,028.38 × 57,210.13
4. Step 4: Simplify right side
   146,019.34x = 12,530,642,093.49
5. Step 5: Solve for x
   x = 12,530,642,093.49/146,019.34
6. Step 6: Final answer
   x = 85,814.95