Finding the Fourth Proportional to 158,505.42, 218,807.82 and 101,219.79

Step by Step Solution

1. Step 1: Write the proportion equation
   158,505.42 : 218,807.82 = 101,219.79 : x
2. Step 2: Convert to fraction form
   158,505.42/218,807.82 = 101,219.79/x
3. Step 3: Cross multiply
   158,505.42x = 218,807.82 × 101,219.79
4. Step 4: Simplify right side
   158,505.42x = 22,147,681,590.76
5. Step 5: Solve for x
   x = 22,147,681,590.76/158,505.42
6. Step 6: Final answer
   x = 139,728.23