Finding the Fourth Proportional to 113,019.84, 155,967.12 and 65,271.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,019.84 : 155,967.12 = 65,271.96 : x
2. Step 2: Convert to fraction form
   113,019.84/155,967.12 = 65,271.96/x
3. Step 3: Cross multiply
   113,019.84x = 155,967.12 × 65,271.96
4. Step 4: Simplify right side
   113,019.84x = 10,180,279,617.96
5. Step 5: Solve for x
   x = 10,180,279,617.96/113,019.84
6. Step 6: Final answer
   x = 90,075.16