Finding the Fourth Proportional to 9,989.54, 14,980.41 and 3,746.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,989.54 : 14,980.41 = 3,746.15 : x
2. Step 2: Convert to fraction form
   9,989.54/14,980.41 = 3,746.15/x
3. Step 3: Cross multiply
   9,989.54x = 14,980.41 × 3,746.15
4. Step 4: Simplify right side
   9,989.54x = 56,118,862.92
5. Step 5: Solve for x
   x = 56,118,862.92/9,989.54
6. Step 6: Final answer
   x = 5,617.76