Finding the Fourth Proportional to 13,112.10, 18,094.72 and 7,807.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112.10 : 18,094.72 = 7,807.10 : x
2. Step 2: Convert to fraction form
   13,112.10/18,094.72 = 7,807.10/x
3. Step 3: Cross multiply
   13,112.10x = 18,094.72 × 7,807.10
4. Step 4: Simplify right side
   13,112.10x = 141,267,288.51
5. Step 5: Solve for x
   x = 141,267,288.51/13,112.10
6. Step 6: Final answer
   x = 10,773.81