Finding the Fourth Proportional to 16,987.72, 23,445.86 and 9,914.14

Step by Step Solution

1. Step 1: Write the proportion equation
   16,987.72 : 23,445.86 = 9,914.14 : x
2. Step 2: Convert to fraction form
   16,987.72/23,445.86 = 9,914.14/x
3. Step 3: Cross multiply
   16,987.72x = 23,445.86 × 9,914.14
4. Step 4: Simplify right side
   16,987.72x = 232,445,538.46
5. Step 5: Solve for x
   x = 232,445,538.46/16,987.72
6. Step 6: Final answer
   x = 13,683.15