Finding the Fourth Proportional to 112,732.96, 155,571.18 and 64,986.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,732.96 : 155,571.18 = 64,986.04 : x
2. Step 2: Convert to fraction form
   112,732.96/155,571.18 = 64,986.04/x
3. Step 3: Cross multiply
   112,732.96x = 155,571.18 × 64,986.04
4. Step 4: Simplify right side
   112,732.96x = 10,109,954,926.33
5. Step 5: Solve for x
   x = 10,109,954,926.33/112,732.96
6. Step 6: Final answer
   x = 89,680.56