Finding the Fourth Proportional to 78,463.18, 108,277.91 and 42,654.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,463.18 : 108,277.91 = 42,654.09 : x
2. Step 2: Convert to fraction form
   78,463.18/108,277.91 = 42,654.09/x
3. Step 3: Cross multiply
   78,463.18x = 108,277.91 × 42,654.09
4. Step 4: Simplify right side
   78,463.18x = 4,618,496,310.81
5. Step 5: Solve for x
   x = 4,618,496,310.81/78,463.18
6. Step 6: Final answer
   x = 58,861.96