Finding the Fourth Proportional to 201,343.10, 302,111.85 and 142,051.10

Step by Step Solution

1. Step 1: Write the proportion equation
   201,343.10 : 302,111.85 = 142,051.10 : x
2. Step 2: Convert to fraction form
   201,343.10/302,111.85 = 142,051.10/x
3. Step 3: Cross multiply
   201,343.10x = 302,111.85 × 142,051.10
4. Step 4: Simplify right side
   201,343.10x = 42,915,320,615.54
5. Step 5: Solve for x
   x = 42,915,320,615.54/201,343.10
6. Step 6: Final answer
   x = 213,145.23