Finding the Fourth Proportional to 9,148.04, 12,623.86 and 5,115.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,148.04 : 12,623.86 = 5,115.06 : x
2. Step 2: Convert to fraction form
   9,148.04/12,623.86 = 5,115.06/x
3. Step 3: Cross multiply
   9,148.04x = 12,623.86 × 5,115.06
4. Step 4: Simplify right side
   9,148.04x = 64,571,801.33
5. Step 5: Solve for x
   x = 64,571,801.33/9,148.04
6. Step 6: Final answer
   x = 7,058.54