Finding the Fourth Proportional to 208,060.96, 287,123.40 and 112,567.72

Step by Step Solution

1. Step 1: Write the proportion equation
   208,060.96 : 287,123.40 = 112,567.72 : x
2. Step 2: Convert to fraction form
   208,060.96/287,123.40 = 112,567.72/x
3. Step 3: Cross multiply
   208,060.96x = 287,123.40 × 112,567.72
4. Step 4: Simplify right side
   208,060.96x = 32,320,826,496.65
5. Step 5: Solve for x
   x = 32,320,826,496.65/208,060.96
6. Step 6: Final answer
   x = 155,343.06