Finding the Fourth Proportional to 123,847.68, 170,998.56 and 76,164.96

Step by Step Solution

1. Step 1: Write the proportion equation
   123,847.68 : 170,998.56 = 76,164.96 : x
2. Step 2: Convert to fraction form
   123,847.68/170,998.56 = 76,164.96/x
3. Step 3: Cross multiply
   123,847.68x = 170,998.56 × 76,164.96
4. Step 4: Simplify right side
   123,847.68x = 13,024,098,482.46
5. Step 5: Solve for x
   x = 13,024,098,482.46/123,847.68
6. Step 6: Final answer
   x = 105,162.23