Finding the Fourth Proportional to 84,435.20, 116,619.72 and 67,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   84,435.20 : 116,619.72 = 67,498.10 : x
2. Step 2: Convert to fraction form
   84,435.20/116,619.72 = 67,498.10/x
3. Step 3: Cross multiply
   84,435.20x = 116,619.72 × 67,498.10
4. Step 4: Simplify right side
   84,435.20x = 7,871,609,522.53
5. Step 5: Solve for x
   x = 7,871,609,522.53/84,435.20
6. Step 6: Final answer
   x = 93,226.63