Finding the Fourth Proportional to 77,789.82, 116,658.74 and 30,392.62

Step by Step Solution

1. Step 1: Write the proportion equation
   77,789.82 : 116,658.74 = 30,392.62 : x
2. Step 2: Convert to fraction form
   77,789.82/116,658.74 = 30,392.62/x
3. Step 3: Cross multiply
   77,789.82x = 116,658.74 × 30,392.62
4. Step 4: Simplify right side
   77,789.82x = 3,545,564,754.50
5. Step 5: Solve for x
   x = 3,545,564,754.50/77,789.82
6. Step 6: Final answer
   x = 45,578.78