Finding the Fourth Proportional to 56,976.76, 78,648.92 and 34,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,976.76 : 78,648.92 = 34,316.72 : x
2. Step 2: Convert to fraction form
   56,976.76/78,648.92 = 34,316.72/x
3. Step 3: Cross multiply
   56,976.76x = 78,648.92 × 34,316.72
4. Step 4: Simplify right side
   56,976.76x = 2,698,972,965.94
5. Step 5: Solve for x
   x = 2,698,972,965.94/56,976.76
6. Step 6: Final answer
   x = 47,369.72