Finding the Fourth Proportional to 162,783.30, 244,142.55 and 78,543.30

Step by Step Solution

1. Step 1: Write the proportion equation
   162,783.30 : 244,142.55 = 78,543.30 : x
2. Step 2: Convert to fraction form
   162,783.30/244,142.55 = 78,543.30/x
3. Step 3: Cross multiply
   162,783.30x = 244,142.55 × 78,543.30
4. Step 4: Simplify right side
   162,783.30x = 19,175,761,547.42
5. Step 5: Solve for x
   x = 19,175,761,547.42/162,783.30
6. Step 6: Final answer
   x = 117,799.32