Finding the Fourth Proportional to 17,877.30, 24,670.59 and 9,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,877.30 : 24,670.59 = 9,919.50 : x
2. Step 2: Convert to fraction form
   17,877.30/24,670.59 = 9,919.50/x
3. Step 3: Cross multiply
   17,877.30x = 24,670.59 × 9,919.50
4. Step 4: Simplify right side
   17,877.30x = 244,719,917.51
5. Step 5: Solve for x
   x = 244,719,917.51/17,877.30
6. Step 6: Final answer
   x = 13,688.86