Finding the Fourth Proportional to 86,447.47, 119,293.83 and 63,778.31

Step by Step Solution

1. Step 1: Write the proportion equation
   86,447.47 : 119,293.83 = 63,778.31 : x
2. Step 2: Convert to fraction form
   86,447.47/119,293.83 = 63,778.31/x
3. Step 3: Cross multiply
   86,447.47x = 119,293.83 × 63,778.31
4. Step 4: Simplify right side
   86,447.47x = 7,608,358,870.83
5. Step 5: Solve for x
   x = 7,608,358,870.83/86,447.47
6. Step 6: Final answer
   x = 88,011.35