Finding the Fourth Proportional to 112,288.32, 168,343.04 and 64,849.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,288.32 : 168,343.04 = 64,849.60 : x
2. Step 2: Convert to fraction form
   112,288.32/168,343.04 = 64,849.60/x
3. Step 3: Cross multiply
   112,288.32x = 168,343.04 × 64,849.60
4. Step 4: Simplify right side
   112,288.32x = 10,916,978,806.78
5. Step 5: Solve for x
   x = 10,916,978,806.78/112,288.32
6. Step 6: Final answer
   x = 97,222.75