Finding the Fourth Proportional to 112,524.88, 155,272.68 and 64,768.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,524.88 : 155,272.68 = 64,768.72 : x
2. Step 2: Convert to fraction form
   112,524.88/155,272.68 = 64,768.72/x
3. Step 3: Cross multiply
   112,524.88x = 155,272.68 × 64,768.72
4. Step 4: Simplify right side
   112,524.88x = 10,056,812,734.57
5. Step 5: Solve for x
   x = 10,056,812,734.57/112,524.88
6. Step 6: Final answer
   x = 89,374.13