Finding the Fourth Proportional to 22,200.78, 33,296.25 and 6,402.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.78 : 33,296.25 = 6,402.31 : x
2. Step 2: Convert to fraction form
   22,200.78/33,296.25 = 6,402.31/x
3. Step 3: Cross multiply
   22,200.78x = 33,296.25 × 6,402.31
4. Step 4: Simplify right side
   22,200.78x = 213,172,914.34
5. Step 5: Solve for x
   x = 213,172,914.34/22,200.78
6. Step 6: Final answer
   x = 9,602.05