Finding the Fourth Proportional to 112,651.52, 155,493.74 and 64,936.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,651.52 : 155,493.74 = 64,936.76 : x
2. Step 2: Convert to fraction form
   112,651.52/155,493.74 = 64,936.76/x
3. Step 3: Cross multiply
   112,651.52x = 155,493.74 × 64,936.76
4. Step 4: Simplify right side
   112,651.52x = 10,097,259,675.88
5. Step 5: Solve for x
   x = 10,097,259,675.88/112,651.52
6. Step 6: Final answer
   x = 89,632.70