Finding the Fourth Proportional to 9,066.71, 13,602.78 and 7,499.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,066.71 : 13,602.78 = 7,499.63 : x
2. Step 2: Convert to fraction form
   9,066.71/13,602.78 = 7,499.63/x
3. Step 3: Cross multiply
   9,066.71x = 13,602.78 × 7,499.63
4. Step 4: Simplify right side
   9,066.71x = 102,015,748.96
5. Step 5: Solve for x
   x = 102,015,748.96/9,066.71
6. Step 6: Final answer
   x = 11,251.69