Finding the Fourth Proportional to 201,810.25, 278,442.72 and 140,487.73

Step by Step Solution

1. Step 1: Write the proportion equation
   201,810.25 : 278,442.72 = 140,487.73 : x
2. Step 2: Convert to fraction form
   201,810.25/278,442.72 = 140,487.73/x
3. Step 3: Cross multiply
   201,810.25x = 278,442.72 × 140,487.73
4. Step 4: Simplify right side
   201,810.25x = 39,117,785,667.83
5. Step 5: Solve for x
   x = 39,117,785,667.83/201,810.25
6. Step 6: Final answer
   x = 193,834.48