Finding the Fourth Proportional to 70,699.32, 106,046.52 and 18,109.26

Step by Step Solution

1. Step 1: Write the proportion equation
   70,699.32 : 106,046.52 = 18,109.26 : x
2. Step 2: Convert to fraction form
   70,699.32/106,046.52 = 18,109.26/x
3. Step 3: Cross multiply
   70,699.32x = 106,046.52 × 18,109.26
4. Step 4: Simplify right side
   70,699.32x = 1,920,424,002.78
5. Step 5: Solve for x
   x = 1,920,424,002.78/70,699.32
6. Step 6: Final answer
   x = 27,163.26