Finding the Fourth Proportional to 123,569.75, 170,066.58 and 101,886.05

Step by Step Solution

1. Step 1: Write the proportion equation
   123,569.75 : 170,066.58 = 101,886.05 : x
2. Step 2: Convert to fraction form
   123,569.75/170,066.58 = 101,886.05/x
3. Step 3: Cross multiply
   123,569.75x = 170,066.58 × 101,886.05
4. Step 4: Simplify right side
   123,569.75x = 17,327,412,073.21
5. Step 5: Solve for x
   x = 17,327,412,073.21/123,569.75
6. Step 6: Final answer
   x = 140,223.74