Finding the Fourth Proportional to 78,791.22, 108,732.24 and 42,981.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,791.22 : 108,732.24 = 42,981.12 : x
2. Step 2: Convert to fraction form
   78,791.22/108,732.24 = 42,981.12/x
3. Step 3: Cross multiply
   78,791.22x = 108,732.24 × 42,981.12
4. Step 4: Simplify right side
   78,791.22x = 4,673,433,455.31
5. Step 5: Solve for x
   x = 4,673,433,455.31/78,791.22
6. Step 6: Final answer
   x = 59,314.14