Finding the Fourth Proportional to 208,099.98, 287,178.73 and 112,606.67

Step by Step Solution

1. Step 1: Write the proportion equation
   208,099.98 : 287,178.73 = 112,606.67 : x
2. Step 2: Convert to fraction form
   208,099.98/287,178.73 = 112,606.67/x
3. Step 3: Cross multiply
   208,099.98x = 287,178.73 × 112,606.67
4. Step 4: Simplify right side
   208,099.98x = 32,338,240,916.56
5. Step 5: Solve for x
   x = 32,338,240,916.56/208,099.98
6. Step 6: Final answer
   x = 155,397.62