Finding the Fourth Proportional to 123,196.83, 169,998.93 and 90,948.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,196.83 : 169,998.93 = 90,948.60 : x
2. Step 2: Convert to fraction form
   123,196.83/169,998.93 = 90,948.60/x
3. Step 3: Cross multiply
   123,196.83x = 169,998.93 × 90,948.60
4. Step 4: Simplify right side
   123,196.83x = 15,461,164,685.00
5. Step 5: Solve for x
   x = 15,461,164,685.00/123,196.83
6. Step 6: Final answer
   x = 125,499.70