Finding the Fourth Proportional to 67,499.36, 101,230.50 and 20,112.32

Step by Step Solution

1. Step 1: Write the proportion equation
   67,499.36 : 101,230.50 = 20,112.32 : x
2. Step 2: Convert to fraction form
   67,499.36/101,230.50 = 20,112.32/x
3. Step 3: Cross multiply
   67,499.36x = 101,230.50 × 20,112.32
4. Step 4: Simplify right side
   67,499.36x = 2,035,980,209.76
5. Step 5: Solve for x
   x = 2,035,980,209.76/67,499.36
6. Step 6: Final answer
   x = 30,162.96