Finding the Fourth Proportional to 13,109.16, 18,089.28 and 7,802.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.16 : 18,089.28 = 7,802.94 : x
2. Step 2: Convert to fraction form
   13,109.16/18,089.28 = 7,802.94/x
3. Step 3: Cross multiply
   13,109.16x = 18,089.28 × 7,802.94
4. Step 4: Simplify right side
   13,109.16x = 141,149,566.48
5. Step 5: Solve for x
   x = 141,149,566.48/13,109.16
6. Step 6: Final answer
   x = 10,767.25