Finding the Fourth Proportional to 38,591.56, 57,886.72 and 12,296.12

Step by Step Solution

1. Step 1: Write the proportion equation
   38,591.56 : 57,886.72 = 12,296.12 : x
2. Step 2: Convert to fraction form
   38,591.56/57,886.72 = 12,296.12/x
3. Step 3: Cross multiply
   38,591.56x = 57,886.72 × 12,296.12
4. Step 4: Simplify right side
   38,591.56x = 711,782,055.53
5. Step 5: Solve for x
   x = 711,782,055.53/38,591.56
6. Step 6: Final answer
   x = 18,443.98