Finding the Fourth Proportional to 12,560.67, 17,333.15 and 7,521.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,560.67 : 17,333.15 = 7,521.98 : x
2. Step 2: Convert to fraction form
   12,560.67/17,333.15 = 7,521.98/x
3. Step 3: Cross multiply
   12,560.67x = 17,333.15 × 7,521.98
4. Step 4: Simplify right side
   12,560.67x = 130,379,483.36
5. Step 5: Solve for x
   x = 130,379,483.36/12,560.67
6. Step 6: Final answer
   x = 10,379.98