Finding the Fourth Proportional to 152,145, 209,956.32 and 84,164.67

Step by Step Solution

1. Step 1: Write the proportion equation
   152,145 : 209,956.32 = 84,164.67 : x
2. Step 2: Convert to fraction form
   152,145/209,956.32 = 84,164.67/x
3. Step 3: Cross multiply
   152,145x = 209,956.32 × 84,164.67
4. Step 4: Simplify right side
   152,145x = 17,670,904,387.21
5. Step 5: Solve for x
   x = 17,670,904,387.21/152,145
6. Step 6: Final answer
   x = 116,145.15