Finding the Fourth Proportional to 91,483.50, 137,047.66 and 67,424.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,483.50 : 137,047.66 = 67,424.10 : x
2. Step 2: Convert to fraction form
   91,483.50/137,047.66 = 67,424.10/x
3. Step 3: Cross multiply
   91,483.50x = 137,047.66 × 67,424.10
4. Step 4: Simplify right side
   91,483.50x = 9,240,315,132.61
5. Step 5: Solve for x
   x = 9,240,315,132.61/91,483.50
6. Step 6: Final answer
   x = 101,005.26