Finding the Fourth Proportional to 208,081.74, 287,150.76 and 112,586.34

Step by Step Solution

1. Step 1: Write the proportion equation
   208,081.74 : 287,150.76 = 112,586.34 : x
2. Step 2: Convert to fraction form
   208,081.74/287,150.76 = 112,586.34/x
3. Step 3: Cross multiply
   208,081.74x = 287,150.76 × 112,586.34
4. Step 4: Simplify right side
   208,081.74x = 32,329,253,096.62
5. Step 5: Solve for x
   x = 32,329,253,096.62/208,081.74
6. Step 6: Final answer
   x = 155,368.04