Finding the Fourth Proportional to 546,955.59, 820,426.79 and 142,111.97

Step by Step Solution

1. Step 1: Write the proportion equation
   546,955.59 : 820,426.79 = 142,111.97 : x
2. Step 2: Convert to fraction form
   546,955.59/820,426.79 = 142,111.97/x
3. Step 3: Cross multiply
   546,955.59x = 820,426.79 × 142,111.97
4. Step 4: Simplify right side
   546,955.59x = 116,592,469,241.10
5. Step 5: Solve for x
   x = 116,592,469,241.10/546,955.59
6. Step 6: Final answer
   x = 213,166.24