Finding the Fourth Proportional to 70,665.81, 106,002.35 and 18,075.75

Step by Step Solution

1. Step 1: Write the proportion equation
   70,665.81 : 106,002.35 = 18,075.75 : x
2. Step 2: Convert to fraction form
   70,665.81/106,002.35 = 18,075.75/x
3. Step 3: Cross multiply
   70,665.81x = 106,002.35 × 18,075.75
4. Step 4: Simplify right side
   70,665.81x = 1,916,071,978.01
5. Step 5: Solve for x
   x = 1,916,071,978.01/70,665.81
6. Step 6: Final answer
   x = 27,114.55