Finding the Fourth Proportional to 12,969.51, 17,897.54 and 9,447.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969.51 : 17,897.54 = 9,447.63 : x
2. Step 2: Convert to fraction form
   12,969.51/17,897.54 = 9,447.63/x
3. Step 3: Cross multiply
   12,969.51x = 17,897.54 × 9,447.63
4. Step 4: Simplify right side
   12,969.51x = 169,089,288.59
5. Step 5: Solve for x
   x = 169,089,288.59/12,969.51
6. Step 6: Final answer
   x = 13,037.45