Finding the Fourth Proportional to 542,116.82, 813,215.16 and 142,754.82

Step by Step Solution

1. Step 1: Write the proportion equation
   542,116.82 : 813,215.16 = 142,754.82 : x
2. Step 2: Convert to fraction form
   542,116.82/813,215.16 = 142,754.82/x
3. Step 3: Cross multiply
   542,116.82x = 813,215.16 × 142,754.82
4. Step 4: Simplify right side
   542,116.82x = 116,090,383,787.07
5. Step 5: Solve for x
   x = 116,090,383,787.07/542,116.82
6. Step 6: Final answer
   x = 214,142.75