Finding the Fourth Proportional to 123,842.93, 170,943.82 and 72,853.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123,842.93 : 170,943.82 = 72,853.02 : x
2. Step 2: Convert to fraction form
   123,842.93/170,943.82 = 72,853.02/x
3. Step 3: Cross multiply
   123,842.93x = 170,943.82 × 72,853.02
4. Step 4: Simplify right side
   123,842.93x = 12,453,773,355.20
5. Step 5: Solve for x
   x = 12,453,773,355.20/123,842.93
6. Step 6: Final answer
   x = 100,561.04