Finding the Fourth Proportional to 78,472.84, 108,293.69 and 42,662.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,472.84 : 108,293.69 = 42,662.77 : x
2. Step 2: Convert to fraction form
   78,472.84/108,293.69 = 42,662.77/x
3. Step 3: Cross multiply
   78,472.84x = 108,293.69 × 42,662.77
4. Step 4: Simplify right side
   78,472.84x = 4,620,108,788.92
5. Step 5: Solve for x
   x = 4,620,108,788.92/78,472.84
6. Step 6: Final answer
   x = 58,875.26