Finding the Fourth Proportional to 112,648.52, 155,489.58 and 64,933.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,648.52 : 155,489.58 = 64,933.76 : x
2. Step 2: Convert to fraction form
   112,648.52/155,489.58 = 64,933.76/x
3. Step 3: Cross multiply
   112,648.52x = 155,489.58 × 64,933.76
4. Step 4: Simplify right side
   112,648.52x = 10,096,523,070.22
5. Step 5: Solve for x
   x = 10,096,523,070.22/112,648.52
6. Step 6: Final answer
   x = 89,628.55