Finding the Fourth Proportional to 75,687.38, 104,448.59 and 42,153.38

Step by Step Solution

1. Step 1: Write the proportion equation
   75,687.38 : 104,448.59 = 42,153.38 : x
2. Step 2: Convert to fraction form
   75,687.38/104,448.59 = 42,153.38/x
3. Step 3: Cross multiply
   75,687.38x = 104,448.59 × 42,153.38
4. Step 4: Simplify right side
   75,687.38x = 4,402,860,371.72
5. Step 5: Solve for x
   x = 4,402,860,371.72/75,687.38
6. Step 6: Final answer
   x = 58,171.66