Finding the Fourth Proportional to 112,296.30, 168,355.02 and 64,857.42

Step by Step Solution

1. Step 1: Write the proportion equation
   112,296.30 : 168,355.02 = 64,857.42 : x
2. Step 2: Convert to fraction form
   112,296.30/168,355.02 = 64,857.42/x
3. Step 3: Cross multiply
   112,296.30x = 168,355.02 × 64,857.42
4. Step 4: Simplify right side
   112,296.30x = 10,919,072,241.25
5. Step 5: Solve for x
   x = 10,919,072,241.25/112,296.30
6. Step 6: Final answer
   x = 97,234.48