Finding the Fourth Proportional to 152,149.84, 209,965.56 and 85,081.84

Step by Step Solution

1. Step 1: Write the proportion equation
   152,149.84 : 209,965.56 = 85,081.84 : x
2. Step 2: Convert to fraction form
   152,149.84/209,965.56 = 85,081.84/x
3. Step 3: Cross multiply
   152,149.84x = 209,965.56 × 85,081.84
4. Step 4: Simplify right side
   152,149.84x = 17,864,256,181.43
5. Step 5: Solve for x
   x = 17,864,256,181.43/152,149.84
6. Step 6: Final answer
   x = 117,412.26