Finding the Fourth Proportional to 78,637.73, 108,520.61 and 42,827.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,637.73 : 108,520.61 = 42,827.01 : x
2. Step 2: Convert to fraction form
   78,637.73/108,520.61 = 42,827.01/x
3. Step 3: Cross multiply
   78,637.73x = 108,520.61 × 42,827.01
4. Step 4: Simplify right side
   78,637.73x = 4,647,613,035.54
5. Step 5: Solve for x
   x = 4,647,613,035.54/78,637.73
6. Step 6: Final answer
   x = 59,101.57