Finding the Fourth Proportional to 143,215.81, 197,615.84 and 82,774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,215.81 : 197,615.84 = 82,774.72 : x
2. Step 2: Convert to fraction form
   143,215.81/197,615.84 = 82,774.72/x
3. Step 3: Cross multiply
   143,215.81x = 197,615.84 × 82,774.72
4. Step 4: Simplify right side
   143,215.81x = 16,357,595,656.71
5. Step 5: Solve for x
   x = 16,357,595,656.71/143,215.81
6. Step 6: Final answer
   x = 114,216.41