Finding the Fourth Proportional to 56,758.18, 78,298.23 and 34,086.28

Step by Step Solution

1. Step 1: Write the proportion equation
   56,758.18 : 78,298.23 = 34,086.28 : x
2. Step 2: Convert to fraction form
   56,758.18/78,298.23 = 34,086.28/x
3. Step 3: Cross multiply
   56,758.18x = 78,298.23 × 34,086.28
4. Step 4: Simplify right side
   56,758.18x = 2,668,895,391.28
5. Step 5: Solve for x
   x = 2,668,895,391.28/56,758.18
6. Step 6: Final answer
   x = 47,022.22