Finding the Fourth Proportional to 104,078.76, 143,631.31 and 63,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   104,078.76 : 143,631.31 = 63,814.72 : x
2. Step 2: Convert to fraction form
   104,078.76/143,631.31 = 63,814.72/x
3. Step 3: Cross multiply
   104,078.76x = 143,631.31 × 63,814.72
4. Step 4: Simplify right side
   104,078.76x = 9,165,791,830.88
5. Step 5: Solve for x
   x = 9,165,791,830.88/104,078.76
6. Step 6: Final answer
   x = 88,065.92