Finding the Fourth Proportional to 208,036.88, 287,090.56 and 112,543.52

Step by Step Solution

1. Step 1: Write the proportion equation
   208,036.88 : 287,090.56 = 112,543.52 : x
2. Step 2: Convert to fraction form
   208,036.88/287,090.56 = 112,543.52/x
3. Step 3: Cross multiply
   208,036.88x = 287,090.56 × 112,543.52
4. Step 4: Simplify right side
   208,036.88x = 32,310,182,181.17
5. Step 5: Solve for x
   x = 32,310,182,181.17/208,036.88
6. Step 6: Final answer
   x = 155,309.88