Finding the Fourth Proportional to 112,786.32, 155,574.56 and 72,552.48

Step by Step Solution

1. Step 1: Write the proportion equation
   112,786.32 : 155,574.56 = 72,552.48 : x
2. Step 2: Convert to fraction form
   112,786.32/155,574.56 = 72,552.48/x
3. Step 3: Cross multiply
   112,786.32x = 155,574.56 × 72,552.48
4. Step 4: Simplify right side
   112,786.32x = 11,287,320,152.91
5. Step 5: Solve for x
   x = 11,287,320,152.91/112,786.32
6. Step 6: Final answer
   x = 100,077.03