Finding the Fourth Proportional to 208,091.76, 287,164.56 and 112,596.32

Step by Step Solution

1. Step 1: Write the proportion equation
   208,091.76 : 287,164.56 = 112,596.32 : x
2. Step 2: Convert to fraction form
   208,091.76/287,164.56 = 112,596.32/x
3. Step 3: Cross multiply
   208,091.76x = 287,164.56 × 112,596.32
4. Step 4: Simplify right side
   208,091.76x = 32,333,672,690.42
5. Step 5: Solve for x
   x = 32,333,672,690.42/208,091.76
6. Step 6: Final answer
   x = 155,381.80