Finding the Fourth Proportional to 158,607.72, 218,902.82 and 98,188.52

Step by Step Solution

1. Step 1: Write the proportion equation
   158,607.72 : 218,902.82 = 98,188.52 : x
2. Step 2: Convert to fraction form
   158,607.72/218,902.82 = 98,188.52/x
3. Step 3: Cross multiply
   158,607.72x = 218,902.82 × 98,188.52
4. Step 4: Simplify right side
   158,607.72x = 21,493,743,919.63
5. Step 5: Solve for x
   x = 21,493,743,919.63/158,607.72
6. Step 6: Final answer
   x = 135,515.12