Finding the Fourth Proportional to 152,083.67, 209,876.82 and 84,105.21

Step by Step Solution

1. Step 1: Write the proportion equation
   152,083.67 : 209,876.82 = 84,105.21 : x
2. Step 2: Convert to fraction form
   152,083.67/209,876.82 = 84,105.21/x
3. Step 3: Cross multiply
   152,083.67x = 209,876.82 × 84,105.21
4. Step 4: Simplify right side
   152,083.67x = 17,651,733,599.71
5. Step 5: Solve for x
   x = 17,651,733,599.71/152,083.67
6. Step 6: Final answer
   x = 116,065.94