Finding the Fourth Proportional to 103,716.47, 143,131.61 and 63,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,716.47 : 143,131.61 = 63,429.50 : x
2. Step 2: Convert to fraction form
   103,716.47/143,131.61 = 63,429.50/x
3. Step 3: Cross multiply
   103,716.47x = 143,131.61 × 63,429.50
4. Step 4: Simplify right side
   103,716.47x = 9,078,765,423.69
5. Step 5: Solve for x
   x = 9,078,765,423.69/103,716.47
6. Step 6: Final answer
   x = 87,534.47