Finding the Fourth Proportional to 201,300.23, 301,999.78 and 100,146.01

Step by Step Solution

1. Step 1: Write the proportion equation
   201,300.23 : 301,999.78 = 100,146.01 : x
2. Step 2: Convert to fraction form
   201,300.23/301,999.78 = 100,146.01/x
3. Step 3: Cross multiply
   201,300.23x = 301,999.78 × 100,146.01
4. Step 4: Simplify right side
   201,300.23x = 30,244,071,477.88
5. Step 5: Solve for x
   x = 30,244,071,477.88/201,300.23
6. Step 6: Final answer
   x = 150,243.60