Finding the Fourth Proportional to 9,051.21, 12,473.46 and 8,460.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,051.21 : 12,473.46 = 8,460.45 : x
2. Step 2: Convert to fraction form
   9,051.21/12,473.46 = 8,460.45/x
3. Step 3: Cross multiply
   9,051.21x = 12,473.46 × 8,460.45
4. Step 4: Simplify right side
   9,051.21x = 105,531,084.66
5. Step 5: Solve for x
   x = 105,531,084.66/9,051.21
6. Step 6: Final answer
   x = 11,659.33