Finding the Fourth Proportional to 81,606.30, 112,651.58 and 76,499.33

Step by Step Solution

1. Step 1: Write the proportion equation
   81,606.30 : 112,651.58 = 76,499.33 : x
2. Step 2: Convert to fraction form
   81,606.30/112,651.58 = 76,499.33/x
3. Step 3: Cross multiply
   81,606.30x = 112,651.58 × 76,499.33
4. Step 4: Simplify right side
   81,606.30x = 8,617,769,447.69
5. Step 5: Solve for x
   x = 8,617,769,447.69/81,606.30
6. Step 6: Final answer
   x = 105,601.77