Finding the Fourth Proportional to 78,309.36, 108,069.03 and 42,499.44

Step by Step Solution

1. Step 1: Write the proportion equation
   78,309.36 : 108,069.03 = 42,499.44 : x
2. Step 2: Convert to fraction form
   78,309.36/108,069.03 = 42,499.44/x
3. Step 3: Cross multiply
   78,309.36x = 108,069.03 × 42,499.44
4. Step 4: Simplify right side
   78,309.36x = 4,592,873,256.34
5. Step 5: Solve for x
   x = 4,592,873,256.34/78,309.36
6. Step 6: Final answer
   x = 58,650.37