Finding the Fourth Proportional to 73,728.60, 110,413.77 and 42,043.05

Step by Step Solution

1. Step 1: Write the proportion equation
   73,728.60 : 110,413.77 = 42,043.05 : x
2. Step 2: Convert to fraction form
   73,728.60/110,413.77 = 42,043.05/x
3. Step 3: Cross multiply
   73,728.60x = 110,413.77 × 42,043.05
4. Step 4: Simplify right side
   73,728.60x = 4,642,131,495.14
5. Step 5: Solve for x
   x = 4,642,131,495.14/73,728.60
6. Step 6: Final answer
   x = 62,962.43