Finding the Fourth Proportional to 100,572.68, 150,990.86 and 67,441.00

Step by Step Solution

1. Step 1: Write the proportion equation
   100,572.68 : 150,990.86 = 67,441.00 : x
2. Step 2: Convert to fraction form
   100,572.68/150,990.86 = 67,441.00/x
3. Step 3: Cross multiply
   100,572.68x = 150,990.86 × 67,441.00
4. Step 4: Simplify right side
   100,572.68x = 10,182,973,834.31
5. Step 5: Solve for x
   x = 10,182,973,834.31/100,572.68
6. Step 6: Final answer
   x = 101,249.90