Finding the Fourth Proportional to 91,823.02, 137,605.20 and 73,019.62

Step by Step Solution

1. Step 1: Write the proportion equation
   91,823.02 : 137,605.20 = 73,019.62 : x
2. Step 2: Convert to fraction form
   91,823.02/137,605.20 = 73,019.62/x
3. Step 3: Cross multiply
   91,823.02x = 137,605.20 × 73,019.62
4. Step 4: Simplify right side
   91,823.02x = 10,047,879,414.02
5. Step 5: Solve for x
   x = 10,047,879,414.02/91,823.02
6. Step 6: Final answer
   x = 109,426.58