Finding the Fourth Proportional to 123,099.48, 169,918.83 and 76,568.58

Step by Step Solution

1. Step 1: Write the proportion equation
   123,099.48 : 169,918.83 = 76,568.58 : x
2. Step 2: Convert to fraction form
   123,099.48/169,918.83 = 76,568.58/x
3. Step 3: Cross multiply
   123,099.48x = 169,918.83 × 76,568.58
4. Step 4: Simplify right side
   123,099.48x = 13,010,443,528.36
5. Step 5: Solve for x
   x = 13,010,443,528.36/123,099.48
6. Step 6: Final answer
   x = 105,690.48