Finding the Fourth Proportional to 152,676.59, 228,781.34 and 81,609.34

Step by Step Solution

1. Step 1: Write the proportion equation
   152,676.59 : 228,781.34 = 81,609.34 : x
2. Step 2: Convert to fraction form
   152,676.59/228,781.34 = 81,609.34/x
3. Step 3: Cross multiply
   152,676.59x = 228,781.34 × 81,609.34
4. Step 4: Simplify right side
   152,676.59x = 18,670,694,161.72
5. Step 5: Solve for x
   x = 18,670,694,161.72/152,676.59
6. Step 6: Final answer
   x = 122,289.17