Finding the Fourth Proportional to 208,141.32, 287,235.01 and 112,648.01

Step by Step Solution

1. Step 1: Write the proportion equation
   208,141.32 : 287,235.01 = 112,648.01 : x
2. Step 2: Convert to fraction form
   208,141.32/287,235.01 = 112,648.01/x
3. Step 3: Cross multiply
   208,141.32x = 287,235.01 × 112,648.01
4. Step 4: Simplify right side
   208,141.32x = 32,356,452,278.83
5. Step 5: Solve for x
   x = 32,356,452,278.83/208,141.32
6. Step 6: Final answer
   x = 155,454.25