Finding the Fourth Proportional to 9,930.76, 14,886.72 and 3,686.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.76 : 14,886.72 = 3,686.51 : x
2. Step 2: Convert to fraction form
   9,930.76/14,886.72 = 3,686.51/x
3. Step 3: Cross multiply
   9,930.76x = 14,886.72 × 3,686.51
4. Step 4: Simplify right side
   9,930.76x = 54,880,079.36
5. Step 5: Solve for x
   x = 54,880,079.36/9,930.76
6. Step 6: Final answer
   x = 5,526.27