Finding the Fourth Proportional to 123,773.88, 170,501.82 and 105,565.08

Step by Step Solution

1. Step 1: Write the proportion equation
   123,773.88 : 170,501.82 = 105,565.08 : x
2. Step 2: Convert to fraction form
   123,773.88/170,501.82 = 105,565.08/x
3. Step 3: Cross multiply
   123,773.88x = 170,501.82 × 105,565.08
4. Step 4: Simplify right side
   123,773.88x = 17,999,038,268.45
5. Step 5: Solve for x
   x = 17,999,038,268.45/123,773.88
6. Step 6: Final answer
   x = 145,418.71