Finding the Fourth Proportional to 8,686.63, 13,030.55 and 3,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,686.63 : 13,030.55 = 3,492.50 : x
2. Step 2: Convert to fraction form
   8,686.63/13,030.55 = 3,492.50/x
3. Step 3: Cross multiply
   8,686.63x = 13,030.55 × 3,492.50
4. Step 4: Simplify right side
   8,686.63x = 45,509,195.88
5. Step 5: Solve for x
   x = 45,509,195.88/8,686.63
6. Step 6: Final answer
   x = 5,238.99