Finding the Fourth Proportional to 78,706.52, 108,615.08 and 42,896.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,706.52 : 108,615.08 = 42,896.56 : x
2. Step 2: Convert to fraction form
   78,706.52/108,615.08 = 42,896.56/x
3. Step 3: Cross multiply
   78,706.52x = 108,615.08 × 42,896.56
4. Step 4: Simplify right side
   78,706.52x = 4,659,213,296.12
5. Step 5: Solve for x
   x = 4,659,213,296.12/78,706.52
6. Step 6: Final answer
   x = 59,197.30