Finding the Fourth Proportional to 10,419.59, 14,385.76 and 9,298.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.59 : 14,385.76 = 9,298.62 : x
2. Step 2: Convert to fraction form
   10,419.59/14,385.76 = 9,298.62/x
3. Step 3: Cross multiply
   10,419.59x = 14,385.76 × 9,298.62
4. Step 4: Simplify right side
   10,419.59x = 133,767,692.40
5. Step 5: Solve for x
   x = 133,767,692.40/10,419.59
6. Step 6: Final answer
   x = 12,838.09