Finding the Fourth Proportional to 158,815.42, 219,165.72 and 87,200.08

Step by Step Solution

1. Step 1: Write the proportion equation
   158,815.42 : 219,165.72 = 87,200.08 : x
2. Step 2: Convert to fraction form
   158,815.42/219,165.72 = 87,200.08/x
3. Step 3: Cross multiply
   158,815.42x = 219,165.72 × 87,200.08
4. Step 4: Simplify right side
   158,815.42x = 19,111,268,317.26
5. Step 5: Solve for x
   x = 19,111,268,317.26/158,815.42
6. Step 6: Final answer
   x = 120,336.35