Finding the Fourth Proportional to 78,656.16, 108,542.16 and 42,846.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,656.16 : 108,542.16 = 42,846.48 : x
2. Step 2: Convert to fraction form
   78,656.16/108,542.16 = 42,846.48/x
3. Step 3: Cross multiply
   78,656.16x = 108,542.16 × 42,846.48
4. Step 4: Simplify right side
   78,656.16x = 4,650,649,487.60
5. Step 5: Solve for x
   x = 4,650,649,487.60/78,656.16
6. Step 6: Final answer
   x = 59,126.32