Finding the Fourth Proportional to 365,109.82, 546,332.52 and 215,421.82

Step by Step Solution

1. Step 1: Write the proportion equation
   365,109.82 : 546,332.52 = 215,421.82 : x
2. Step 2: Convert to fraction form
   365,109.82/546,332.52 = 215,421.82/x
3. Step 3: Cross multiply
   365,109.82x = 546,332.52 × 215,421.82
4. Step 4: Simplify right side
   365,109.82x = 117,691,945,783.59
5. Step 5: Solve for x
   x = 117,691,945,783.59/365,109.82
6. Step 6: Final answer
   x = 322,346.70