Finding the Fourth Proportional to 143,075.84, 214,824.42 and 80,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,075.84 : 214,824.42 = 80,019.50 : x
2. Step 2: Convert to fraction form
   143,075.84/214,824.42 = 80,019.50/x
3. Step 3: Cross multiply
   143,075.84x = 214,824.42 × 80,019.50
4. Step 4: Simplify right side
   143,075.84x = 17,190,142,676.19
5. Step 5: Solve for x
   x = 17,190,142,676.19/143,075.84
6. Step 6: Final answer
   x = 120,147.07