Finding the Fourth Proportional to 10,472.34, 15,706.15 and 3,077.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,472.34 : 15,706.15 = 3,077.39 : x
2. Step 2: Convert to fraction form
   10,472.34/15,706.15 = 3,077.39/x
3. Step 3: Cross multiply
   10,472.34x = 15,706.15 × 3,077.39
4. Step 4: Simplify right side
   10,472.34x = 48,333,997.83
5. Step 5: Solve for x
   x = 48,333,997.83/10,472.34
6. Step 6: Final answer
   x = 4,615.40