Finding the Fourth Proportional to 28,749.88, 39,674.52 and 16,003

Step by Step Solution

1. Step 1: Write the proportion equation
   28,749.88 : 39,674.52 = 16,003 : x
2. Step 2: Convert to fraction form
   28,749.88/39,674.52 = 16,003/x
3. Step 3: Cross multiply
   28,749.88x = 39,674.52 × 16,003
4. Step 4: Simplify right side
   28,749.88x = 634,911,343.56
5. Step 5: Solve for x
   x = 634,911,343.56/28,749.88
6. Step 6: Final answer
   x = 22,083.96