Finding the Fourth Proportional to 159,114.42, 219,583.55 and 87,499.89

Step by Step Solution

1. Step 1: Write the proportion equation
   159,114.42 : 219,583.55 = 87,499.89 : x
2. Step 2: Convert to fraction form
   159,114.42/219,583.55 = 87,499.89/x
3. Step 3: Cross multiply
   159,114.42x = 219,583.55 × 87,499.89
4. Step 4: Simplify right side
   159,114.42x = 19,213,536,470.81
5. Step 5: Solve for x
   x = 19,213,536,470.81/159,114.42
6. Step 6: Final answer
   x = 120,752.96