Finding the Fourth Proportional to 56,876.72, 78,446.76 and 34,214

Step by Step Solution

1. Step 1: Write the proportion equation
   56,876.72 : 78,446.76 = 34,214 : x
2. Step 2: Convert to fraction form
   56,876.72/78,446.76 = 34,214/x
3. Step 3: Cross multiply
   56,876.72x = 78,446.76 × 34,214
4. Step 4: Simplify right side
   56,876.72x = 2,683,977,446.64
5. Step 5: Solve for x
   x = 2,683,977,446.64/56,876.72
6. Step 6: Final answer
   x = 47,189.39