Finding the Fourth Proportional to 14,603.83, 20,153.29 and 7,889.45

Step by Step Solution

1. Step 1: Write the proportion equation
   14,603.83 : 20,153.29 = 7,889.45 : x
2. Step 2: Convert to fraction form
   14,603.83/20,153.29 = 7,889.45/x
3. Step 3: Cross multiply
   14,603.83x = 20,153.29 × 7,889.45
4. Step 4: Simplify right side
   14,603.83x = 158,998,404.45
5. Step 5: Solve for x
   x = 158,998,404.45/14,603.83
6. Step 6: Final answer
   x = 10,887.45