Finding the Fourth Proportional to 131,459.22, 197,040.78 and 64,758.06

Step by Step Solution

1. Step 1: Write the proportion equation
   131,459.22 : 197,040.78 = 64,758.06 : x
2. Step 2: Convert to fraction form
   131,459.22/197,040.78 = 64,758.06/x
3. Step 3: Cross multiply
   131,459.22x = 197,040.78 × 64,758.06
4. Step 4: Simplify right side
   131,459.22x = 12,759,978,653.69
5. Step 5: Solve for x
   x = 12,759,978,653.69/131,459.22
6. Step 6: Final answer
   x = 97,064.16