Finding the Fourth Proportional to 201,978.16, 278,996.08 and 150,902.12

Step by Step Solution

1. Step 1: Write the proportion equation
   201,978.16 : 278,996.08 = 150,902.12 : x
2. Step 2: Convert to fraction form
   201,978.16/278,996.08 = 150,902.12/x
3. Step 3: Cross multiply
   201,978.16x = 278,996.08 × 150,902.12
4. Step 4: Simplify right side
   201,978.16x = 42,101,099,943.69
5. Step 5: Solve for x
   x = 42,101,099,943.69/201,978.16
6. Step 6: Final answer
   x = 208,443.82