Finding the Fourth Proportional to 12,495.60, 17,244.59 and 7,191.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.60 : 17,244.59 = 7,191.23 : x
2. Step 2: Convert to fraction form
   12,495.60/17,244.59 = 7,191.23/x
3. Step 3: Cross multiply
   12,495.60x = 17,244.59 × 7,191.23
4. Step 4: Simplify right side
   12,495.60x = 124,009,690.77
5. Step 5: Solve for x
   x = 124,009,690.77/12,495.60
6. Step 6: Final answer
   x = 9,924.27