Finding the Fourth Proportional to 162,840.10, 244,454.55 and 91,819.30

Step by Step Solution

1. Step 1: Write the proportion equation
   162,840.10 : 244,454.55 = 91,819.30 : x
2. Step 2: Convert to fraction form
   162,840.10/244,454.55 = 91,819.30/x
3. Step 3: Cross multiply
   162,840.10x = 244,454.55 × 91,819.30
4. Step 4: Simplify right side
   162,840.10x = 22,445,645,662.82
5. Step 5: Solve for x
   x = 22,445,645,662.82/162,840.10
6. Step 6: Final answer
   x = 137,838.56