Finding the Fourth Proportional to 18,820.16, 25,971.52 and 10,437.12

Step by Step Solution

1. Step 1: Write the proportion equation
   18,820.16 : 25,971.52 = 10,437.12 : x
2. Step 2: Convert to fraction form
   18,820.16/25,971.52 = 10,437.12/x
3. Step 3: Cross multiply
   18,820.16x = 25,971.52 × 10,437.12
4. Step 4: Simplify right side
   18,820.16x = 271,067,870.82
5. Step 5: Solve for x
   x = 271,067,870.82/18,820.16
6. Step 6: Final answer
   x = 14,403.06