Finding the Fourth Proportional to 78,104.57, 107,784.82 and 42,294.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,104.57 : 107,784.82 = 42,294.58 : x
2. Step 2: Convert to fraction form
   78,104.57/107,784.82 = 42,294.58/x
3. Step 3: Cross multiply
   78,104.57x = 107,784.82 × 42,294.58
4. Step 4: Simplify right side
   78,104.57x = 4,558,713,692.28
5. Step 5: Solve for x
   x = 4,558,713,692.28/78,104.57
6. Step 6: Final answer
   x = 58,366.80