Finding the Fourth Proportional to 86,951.41, 120,606.84 and 84,646.86

Step by Step Solution

1. Step 1: Write the proportion equation
   86,951.41 : 120,606.84 = 84,646.86 : x
2. Step 2: Convert to fraction form
   86,951.41/120,606.84 = 84,646.86/x
3. Step 3: Cross multiply
   86,951.41x = 120,606.84 × 84,646.86
4. Step 4: Simplify right side
   86,951.41x = 10,208,990,300.52
5. Step 5: Solve for x
   x = 10,208,990,300.52/86,951.41
6. Step 6: Final answer
   x = 117,410.29