Finding the Fourth Proportional to 71,421.02, 107,025.94 and 67,427.02

Step by Step Solution

1. Step 1: Write the proportion equation
   71,421.02 : 107,025.94 = 67,427.02 : x
2. Step 2: Convert to fraction form
   71,421.02/107,025.94 = 67,427.02/x
3. Step 3: Cross multiply
   71,421.02x = 107,025.94 × 67,427.02
4. Step 4: Simplify right side
   71,421.02x = 7,216,440,196.90
5. Step 5: Solve for x
   x = 7,216,440,196.90/71,421.02
6. Step 6: Final answer
   x = 101,040.84