Finding the Fourth Proportional to 6,131.34, 8,461.13 and 3,478.77

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.34 : 8,461.13 = 3,478.77 : x
2. Step 2: Convert to fraction form
   6,131.34/8,461.13 = 3,478.77/x
3. Step 3: Cross multiply
   6,131.34x = 8,461.13 × 3,478.77
4. Step 4: Simplify right side
   6,131.34x = 29,434,307.82
5. Step 5: Solve for x
   x = 29,434,307.82/6,131.34
6. Step 6: Final answer
   x = 4,800.63