Finding the Fourth Proportional to 172,978.40, 238,705.60 and 96,499.84

Step by Step Solution

1. Step 1: Write the proportion equation
   172,978.40 : 238,705.60 = 96,499.84 : x
2. Step 2: Convert to fraction form
   172,978.40/238,705.60 = 96,499.84/x
3. Step 3: Cross multiply
   172,978.40x = 238,705.60 × 96,499.84
4. Step 4: Simplify right side
   172,978.40x = 23,035,052,207.10
5. Step 5: Solve for x
   x = 23,035,052,207.10/172,978.40
6. Step 6: Final answer
   x = 133,167.22