Finding the Fourth Proportional to 152,146.56, 209,958.24 and 84,166.32

Step by Step Solution

1. Step 1: Write the proportion equation
   152,146.56 : 209,958.24 = 84,166.32 : x
2. Step 2: Convert to fraction form
   152,146.56/209,958.24 = 84,166.32/x
3. Step 3: Cross multiply
   152,146.56x = 209,958.24 × 84,166.32
4. Step 4: Simplify right side
   152,146.56x = 17,671,412,414.48
5. Step 5: Solve for x
   x = 17,671,412,414.48/152,146.56
6. Step 6: Final answer
   x = 116,147.30