Finding the Fourth Proportional to 152,595.05, 210,578.99 and 84,612.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,595.05 : 210,578.99 = 84,612.15 : x
2. Step 2: Convert to fraction form
   152,595.05/210,578.99 = 84,612.15/x
3. Step 3: Cross multiply
   152,595.05x = 210,578.99 × 84,612.15
4. Step 4: Simplify right side
   152,595.05x = 17,817,540,665.67
5. Step 5: Solve for x
   x = 17,817,540,665.67/152,595.05
6. Step 6: Final answer
   x = 116,763.56