Finding the Fourth Proportional to 12,499.79, 17,251.65 and 7,193.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.79 : 17,251.65 = 7,193.48 : x
2. Step 2: Convert to fraction form
   12,499.79/17,251.65 = 7,193.48/x
3. Step 3: Cross multiply
   12,499.79x = 17,251.65 × 7,193.48
4. Step 4: Simplify right side
   12,499.79x = 124,099,312.98
5. Step 5: Solve for x
   x = 124,099,312.98/12,499.79
6. Step 6: Final answer
   x = 9,928.12