Finding the Fourth Proportional to 103,964.64, 143,472.69 and 63,663.71

Step by Step Solution

1. Step 1: Write the proportion equation
   103,964.64 : 143,472.69 = 63,663.71 : x
2. Step 2: Convert to fraction form
   103,964.64/143,472.69 = 63,663.71/x
3. Step 3: Cross multiply
   103,964.64x = 143,472.69 × 63,663.71
4. Step 4: Simplify right side
   103,964.64x = 9,134,003,011.72
5. Step 5: Solve for x
   x = 9,134,003,011.72/103,964.64
6. Step 6: Final answer
   x = 87,856.82