Finding the Fourth Proportional to 78,504.34, 108,336.78 and 42,695.14

Step by Step Solution

1. Step 1: Write the proportion equation
   78,504.34 : 108,336.78 = 42,695.14 : x
2. Step 2: Convert to fraction form
   78,504.34/108,336.78 = 42,695.14/x
3. Step 3: Cross multiply
   78,504.34x = 108,336.78 × 42,695.14
4. Step 4: Simplify right side
   78,504.34x = 4,625,453,718.41
5. Step 5: Solve for x
   x = 4,625,453,718.41/78,504.34
6. Step 6: Final answer
   x = 58,919.72