Finding the Fourth Proportional to 16,602.69, 22,909.69 and 9,430.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,602.69 : 22,909.69 = 9,430.05 : x
2. Step 2: Convert to fraction form
   16,602.69/22,909.69 = 9,430.05/x
3. Step 3: Cross multiply
   16,602.69x = 22,909.69 × 9,430.05
4. Step 4: Simplify right side
   16,602.69x = 216,039,522.18
5. Step 5: Solve for x
   x = 216,039,522.18/16,602.69
6. Step 6: Final answer
   x = 13,012.32