Finding the Fourth Proportional to 123,101.48, 169,921.60 and 76,570.58

Step by Step Solution

1. Step 1: Write the proportion equation
   123,101.48 : 169,921.60 = 76,570.58 : x
2. Step 2: Convert to fraction form
   123,101.48/169,921.60 = 76,570.58/x
3. Step 3: Cross multiply
   123,101.48x = 169,921.60 × 76,570.58
4. Step 4: Simplify right side
   123,101.48x = 13,010,995,466.53
5. Step 5: Solve for x
   x = 13,010,995,466.53/123,101.48
6. Step 6: Final answer
   x = 105,693.25