Finding the Fourth Proportional to 215,940.04, 323,442.59 and 156,645

Step by Step Solution

1. Step 1: Write the proportion equation
   215,940.04 : 323,442.59 = 156,645 : x
2. Step 2: Convert to fraction form
   215,940.04/323,442.59 = 156,645/x
3. Step 3: Cross multiply
   215,940.04x = 323,442.59 × 156,645
4. Step 4: Simplify right side
   215,940.04x = 50,665,663,727.33
5. Step 5: Solve for x
   x = 50,665,663,727.33/215,940.04
6. Step 6: Final answer
   x = 234,628.39