Finding the Fourth Proportional to 78,160.03, 107,860.95 and 42,350.05

Step by Step Solution

1. Step 1: Write the proportion equation
   78,160.03 : 107,860.95 = 42,350.05 : x
2. Step 2: Convert to fraction form
   78,160.03/107,860.95 = 42,350.05/x
3. Step 3: Cross multiply
   78,160.03x = 107,860.95 × 42,350.05
4. Step 4: Simplify right side
   78,160.03x = 4,567,916,625.55
5. Step 5: Solve for x
   x = 4,567,916,625.55/78,160.03
6. Step 6: Final answer
   x = 58,443.13