Finding the Fourth Proportional to 78,662.96, 108,554.40 and 42,852.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,662.96 : 108,554.40 = 42,852.88 : x
2. Step 2: Convert to fraction form
   78,662.96/108,554.40 = 42,852.88/x
3. Step 3: Cross multiply
   78,662.96x = 108,554.40 × 42,852.88
4. Step 4: Simplify right side
   78,662.96x = 4,651,868,676.67
5. Step 5: Solve for x
   x = 4,651,868,676.67/78,662.96
6. Step 6: Final answer
   x = 59,136.71