Finding the Fourth Proportional to 201,967.54, 278,981.43 and 150,891.51

Step by Step Solution

1. Step 1: Write the proportion equation
   201,967.54 : 278,981.43 = 150,891.51 : x
2. Step 2: Convert to fraction form
   201,967.54/278,981.43 = 150,891.51/x
3. Step 3: Cross multiply
   201,967.54x = 278,981.43 × 150,891.51
4. Step 4: Simplify right side
   201,967.54x = 42,095,927,085.29
5. Step 5: Solve for x
   x = 42,095,927,085.29/201,967.54
6. Step 6: Final answer
   x = 208,429.17