Finding the Fourth Proportional to 91,822.80, 137,604.84 and 73,019.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,822.80 : 137,604.84 = 73,019.40 : x
2. Step 2: Convert to fraction form
   91,822.80/137,604.84 = 73,019.40/x
3. Step 3: Cross multiply
   91,822.80x = 137,604.84 × 73,019.40
4. Step 4: Simplify right side
   91,822.80x = 10,047,822,853.90
5. Step 5: Solve for x
   x = 10,047,822,853.90/91,822.80
6. Step 6: Final answer
   x = 109,426.23