Finding the Fourth Proportional to 38,322.42, 57,484.17 and 10,620.42

Step by Step Solution

1. Step 1: Write the proportion equation
   38,322.42 : 57,484.17 = 10,620.42 : x
2. Step 2: Convert to fraction form
   38,322.42/57,484.17 = 10,620.42/x
3. Step 3: Cross multiply
   38,322.42x = 57,484.17 × 10,620.42
4. Step 4: Simplify right side
   38,322.42x = 610,506,028.75
5. Step 5: Solve for x
   x = 610,506,028.75/38,322.42
6. Step 6: Final answer
   x = 15,930.78