Finding the Fourth Proportional to 215,377.50, 323,066.33 and 96,910.45

Step by Step Solution

1. Step 1: Write the proportion equation
   215,377.50 : 323,066.33 = 96,910.45 : x
2. Step 2: Convert to fraction form
   215,377.50/323,066.33 = 96,910.45/x
3. Step 3: Cross multiply
   215,377.50x = 323,066.33 × 96,910.45
4. Step 4: Simplify right side
   215,377.50x = 31,308,502,491.34
5. Step 5: Solve for x
   x = 31,308,502,491.34/215,377.50
6. Step 6: Final answer
   x = 145,365.70