Finding the Fourth Proportional to 78,615.83, 108,492.14 and 42,806.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,615.83 : 108,492.14 = 42,806.48 : x
2. Step 2: Convert to fraction form
   78,615.83/108,492.14 = 42,806.48/x
3. Step 3: Cross multiply
   78,615.83x = 108,492.14 × 42,806.48
4. Step 4: Simplify right side
   78,615.83x = 4,644,166,185.62
5. Step 5: Solve for x
   x = 4,644,166,185.62/78,615.83
6. Step 6: Final answer
   x = 59,074.18