Finding the Fourth Proportional to 78,601.96, 108,472.96 and 42,792.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.96 : 108,472.96 = 42,792.56 : x
2. Step 2: Convert to fraction form
   78,601.96/108,472.96 = 42,792.56/x
3. Step 3: Cross multiply
   78,601.96x = 108,472.96 × 42,792.56
4. Step 4: Simplify right side
   78,601.96x = 4,641,835,649.18
5. Step 5: Solve for x
   x = 4,641,835,649.18/78,601.96
6. Step 6: Final answer
   x = 59,054.96