Finding the Fourth Proportional to 208,127.34, 287,215.71 and 112,634.06

Step by Step Solution

1. Step 1: Write the proportion equation
   208,127.34 : 287,215.71 = 112,634.06 : x
2. Step 2: Convert to fraction form
   208,127.34/287,215.71 = 112,634.06/x
3. Step 3: Cross multiply
   208,127.34x = 287,215.71 × 112,634.06
4. Step 4: Simplify right side
   208,127.34x = 32,350,270,077.00
5. Step 5: Solve for x
   x = 32,350,270,077.00/208,127.34
6. Step 6: Final answer
   x = 155,434.99