Finding the Fourth Proportional to 86,484.96, 118,322.87 and 86,111.55

Step by Step Solution

1. Step 1: Write the proportion equation
   86,484.96 : 118,322.87 = 86,111.55 : x
2. Step 2: Convert to fraction form
   86,484.96/118,322.87 = 86,111.55/x
3. Step 3: Cross multiply
   86,484.96x = 118,322.87 × 86,111.55
4. Step 4: Simplify right side
   86,484.96x = 10,188,965,305.59
5. Step 5: Solve for x
   x = 10,188,965,305.59/86,484.96
6. Step 6: Final answer
   x = 117,811.99