Finding the Fourth Proportional to 78,194.50, 107,908.60 and 42,384.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,194.50 : 107,908.60 = 42,384.35 : x
2. Step 2: Convert to fraction form
   78,194.50/107,908.60 = 42,384.35/x
3. Step 3: Cross multiply
   78,194.50x = 107,908.60 × 42,384.35
4. Step 4: Simplify right side
   78,194.50x = 4,573,635,994.49
5. Step 5: Solve for x
   x = 4,573,635,994.49/78,194.50
6. Step 6: Final answer
   x = 58,490.51