Finding the Fourth Proportional to 112,768.06, 155,544.96 and 72,532.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,768.06 : 155,544.96 = 72,532.72 : x
2. Step 2: Convert to fraction form
   112,768.06/155,544.96 = 72,532.72/x
3. Step 3: Cross multiply
   112,768.06x = 155,544.96 × 72,532.72
4. Step 4: Simplify right side
   112,768.06x = 11,282,099,031.09
5. Step 5: Solve for x
   x = 11,282,099,031.09/112,768.06
6. Step 6: Final answer
   x = 100,046.94