Finding the Fourth Proportional to 9,124.89, 12,592.02 and 5,145.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.89 : 12,592.02 = 5,145.48 : x
2. Step 2: Convert to fraction form
   9,124.89/12,592.02 = 5,145.48/x
3. Step 3: Cross multiply
   9,124.89x = 12,592.02 × 5,145.48
4. Step 4: Simplify right side
   9,124.89x = 64,791,987.07
5. Step 5: Solve for x
   x = 64,791,987.07/9,124.89
6. Step 6: Final answer
   x = 7,100.58