Finding the Fourth Proportional to 429,068.27, 643,353.18 and 162,683.47

Step by Step Solution

1. Step 1: Write the proportion equation
   429,068.27 : 643,353.18 = 162,683.47 : x
2. Step 2: Convert to fraction form
   429,068.27/643,353.18 = 162,683.47/x
3. Step 3: Cross multiply
   429,068.27x = 643,353.18 × 162,683.47
4. Step 4: Simplify right side
   429,068.27x = 104,662,927,952.06
5. Step 5: Solve for x
   x = 104,662,927,952.06/429,068.27
6. Step 6: Final answer
   x = 243,930.71