Finding the Fourth Proportional to 67,457.52, 101,203.56 and 20,715.12

Step by Step Solution

1. Step 1: Write the proportion equation
   67,457.52 : 101,203.56 = 20,715.12 : x
2. Step 2: Convert to fraction form
   67,457.52/101,203.56 = 20,715.12/x
3. Step 3: Cross multiply
   67,457.52x = 101,203.56 × 20,715.12
4. Step 4: Simplify right side
   67,457.52x = 2,096,443,889.83
5. Step 5: Solve for x
   x = 2,096,443,889.83/67,457.52
6. Step 6: Final answer
   x = 31,077.99