Finding the Fourth Proportional to 38,443.82, 53,043.86 and 28,906.67

Step by Step Solution

1. Step 1: Write the proportion equation
   38,443.82 : 53,043.86 = 28,906.67 : x
2. Step 2: Convert to fraction form
   38,443.82/53,043.86 = 28,906.67/x
3. Step 3: Cross multiply
   38,443.82x = 53,043.86 × 28,906.67
4. Step 4: Simplify right side
   38,443.82x = 1,533,321,561.42
5. Step 5: Solve for x
   x = 1,533,321,561.42/38,443.82
6. Step 6: Final answer
   x = 39,884.74