Finding the Fourth Proportional to 78,493.83, 108,322.26 and 42,684.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,493.83 : 108,322.26 = 42,684.62 : x
2. Step 2: Convert to fraction form
   78,493.83/108,322.26 = 42,684.62/x
3. Step 3: Cross multiply
   78,493.83x = 108,322.26 × 42,684.62
4. Step 4: Simplify right side
   78,493.83x = 4,623,694,653.38
5. Step 5: Solve for x
   x = 4,623,694,653.38/78,493.83
6. Step 6: Final answer
   x = 58,905.20