Finding the Fourth Proportional to 9,072.36, 13,607.51 and 3,148.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,072.36 : 13,607.51 = 3,148.15 : x
2. Step 2: Convert to fraction form
   9,072.36/13,607.51 = 3,148.15/x
3. Step 3: Cross multiply
   9,072.36x = 13,607.51 × 3,148.15
4. Step 4: Simplify right side
   9,072.36x = 42,838,482.61
5. Step 5: Solve for x
   x = 42,838,482.61/9,072.36
6. Step 6: Final answer
   x = 4,721.87