Finding the Fourth Proportional to 9,125.69, 12,592.01 and 5,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,125.69 : 12,592.01 = 5,146.72 : x
2. Step 2: Convert to fraction form
   9,125.69/12,592.01 = 5,146.72/x
3. Step 3: Cross multiply
   9,125.69x = 12,592.01 × 5,146.72
4. Step 4: Simplify right side
   9,125.69x = 64,807,531.09
5. Step 5: Solve for x
   x = 64,807,531.09/9,125.69
6. Step 6: Final answer
   x = 7,101.66