Finding the Fourth Proportional to 104,079.76, 143,632.69 and 63,815.72

Step by Step Solution

1. Step 1: Write the proportion equation
   104,079.76 : 143,632.69 = 63,815.72 : x
2. Step 2: Convert to fraction form
   104,079.76/143,632.69 = 63,815.72/x
3. Step 3: Cross multiply
   104,079.76x = 143,632.69 × 63,815.72
4. Step 4: Simplify right side
   104,079.76x = 9,166,023,527.89
5. Step 5: Solve for x
   x = 9,166,023,527.89/104,079.76
6. Step 6: Final answer
   x = 88,067.30