Finding the Fourth Proportional to 208,602.82, 287,871.88 and 113,109.58

Step by Step Solution

1. Step 1: Write the proportion equation
   208,602.82 : 287,871.88 = 113,109.58 : x
2. Step 2: Convert to fraction form
   208,602.82/287,871.88 = 113,109.58/x
3. Step 3: Cross multiply
   208,602.82x = 287,871.88 × 113,109.58
4. Step 4: Simplify right side
   208,602.82x = 32,561,067,440.61
5. Step 5: Solve for x
   x = 32,561,067,440.61/208,602.82
6. Step 6: Final answer
   x = 156,091.21