Finding the Fourth Proportional to 17,858.39, 24,645.35 and 9,900.11

Step by Step Solution

1. Step 1: Write the proportion equation
   17,858.39 : 24,645.35 = 9,900.11 : x
2. Step 2: Convert to fraction form
   17,858.39/24,645.35 = 9,900.11/x
3. Step 3: Cross multiply
   17,858.39x = 24,645.35 × 9,900.11
4. Step 4: Simplify right side
   17,858.39x = 243,991,577.51
5. Step 5: Solve for x
   x = 243,991,577.51/17,858.39
6. Step 6: Final answer
   x = 13,662.58