Finding the Fourth Proportional to 159,066.72, 219,512.16 and 87,447.06

Step by Step Solution

1. Step 1: Write the proportion equation
   159,066.72 : 219,512.16 = 87,447.06 : x
2. Step 2: Convert to fraction form
   159,066.72/219,512.16 = 87,447.06/x
3. Step 3: Cross multiply
   159,066.72x = 219,512.16 × 87,447.06
4. Step 4: Simplify right side
   159,066.72x = 19,195,693,026.25
5. Step 5: Solve for x
   x = 19,195,693,026.25/159,066.72
6. Step 6: Final answer
   x = 120,676.99