Finding the Fourth Proportional to 78,278.84, 108,023.83 and 42,468.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,278.84 : 108,023.83 = 42,468.59 : x
2. Step 2: Convert to fraction form
   78,278.84/108,023.83 = 42,468.59/x
3. Step 3: Cross multiply
   78,278.84x = 108,023.83 × 42,468.59
4. Step 4: Simplify right side
   78,278.84x = 4,587,619,302.75
5. Step 5: Solve for x
   x = 4,587,619,302.75/78,278.84
6. Step 6: Final answer
   x = 58,606.12