Finding the Fourth Proportional to 201,515.50, 278,093.01 and 112,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   201,515.50 : 278,093.01 = 112,091.50 : x
2. Step 2: Convert to fraction form
   201,515.50/278,093.01 = 112,091.50/x
3. Step 3: Cross multiply
   201,515.50x = 278,093.01 × 112,091.50
4. Step 4: Simplify right side
   201,515.50x = 31,171,862,630.42
5. Step 5: Solve for x
   x = 31,171,862,630.42/201,515.50
6. Step 6: Final answer
   x = 154,687.17