Finding the Fourth Proportional to 158,981.69, 219,392.25 and 87,360.17

Step by Step Solution

1. Step 1: Write the proportion equation
   158,981.69 : 219,392.25 = 87,360.17 : x
2. Step 2: Convert to fraction form
   158,981.69/219,392.25 = 87,360.17/x
3. Step 3: Cross multiply
   158,981.69x = 219,392.25 × 87,360.17
4. Step 4: Simplify right side
   158,981.69x = 19,166,144,066.20
5. Step 5: Solve for x
   x = 19,166,144,066.20/158,981.69
6. Step 6: Final answer
   x = 120,555.67