Finding the Fourth Proportional to 161,994.78, 243,100.63 and 67,225.06

Step by Step Solution

1. Step 1: Write the proportion equation
   161,994.78 : 243,100.63 = 67,225.06 : x
2. Step 2: Convert to fraction form
   161,994.78/243,100.63 = 67,225.06/x
3. Step 3: Cross multiply
   161,994.78x = 243,100.63 × 67,225.06
4. Step 4: Simplify right side
   161,994.78x = 16,342,453,458.25
5. Step 5: Solve for x
   x = 16,342,453,458.25/161,994.78
6. Step 6: Final answer
   x = 100,882.59