Finding the Fourth Proportional to 13,095.57, 18,071.34 and 7,127.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,095.57 : 18,071.34 = 7,127.25 : x
2. Step 2: Convert to fraction form
   13,095.57/18,071.34 = 7,127.25/x
3. Step 3: Cross multiply
   13,095.57x = 18,071.34 × 7,127.25
4. Step 4: Simplify right side
   13,095.57x = 128,798,958.02
5. Step 5: Solve for x
   x = 128,798,958.02/13,095.57
6. Step 6: Final answer
   x = 9,835.31