Finding the Fourth Proportional to 315,068.82, 434,549.23 and 201,902.10

Step by Step Solution

1. Step 1: Write the proportion equation
   315,068.82 : 434,549.23 = 201,902.10 : x
2. Step 2: Convert to fraction form
   315,068.82/434,549.23 = 201,902.10/x
3. Step 3: Cross multiply
   315,068.82x = 434,549.23 × 201,902.10
4. Step 4: Simplify right side
   315,068.82x = 87,736,402,090.38
5. Step 5: Solve for x
   x = 87,736,402,090.38/315,068.82
6. Step 6: Final answer
   x = 278,467.42