Finding the Fourth Proportional to 70,665.37, 106,001.71 and 18,075.31

Step by Step Solution

1. Step 1: Write the proportion equation
   70,665.37 : 106,001.71 = 18,075.31 : x
2. Step 2: Convert to fraction form
   70,665.37/106,001.71 = 18,075.31/x
3. Step 3: Cross multiply
   70,665.37x = 106,001.71 × 18,075.31
4. Step 4: Simplify right side
   70,665.37x = 1,916,013,458.59
5. Step 5: Solve for x
   x = 1,916,013,458.59/70,665.37
6. Step 6: Final answer
   x = 27,113.90