Finding the Fourth Proportional to 9,780.08, 13,471.89 and 9,062.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.08 : 13,471.89 = 9,062.45 : x
2. Step 2: Convert to fraction form
   9,780.08/13,471.89 = 9,062.45/x
3. Step 3: Cross multiply
   9,780.08x = 13,471.89 × 9,062.45
4. Step 4: Simplify right side
   9,780.08x = 122,088,278.71
5. Step 5: Solve for x
   x = 122,088,278.71/9,780.08
6. Step 6: Final answer
   x = 12,483.37