Finding the Fourth Proportional to 208,034.21, 287,086.24 and 112,540.07

Step by Step Solution

1. Step 1: Write the proportion equation
   208,034.21 : 287,086.24 = 112,540.07 : x
2. Step 2: Convert to fraction form
   208,034.21/287,086.24 = 112,540.07/x
3. Step 3: Cross multiply
   208,034.21x = 287,086.24 × 112,540.07
4. Step 4: Simplify right side
   208,034.21x = 32,308,706,404.03
5. Step 5: Solve for x
   x = 32,308,706,404.03/208,034.21
6. Step 6: Final answer
   x = 155,304.77