Finding the Fourth Proportional to 67,039.22, 100,553.59 and 31,508.30

Step by Step Solution

1. Step 1: Write the proportion equation
   67,039.22 : 100,553.59 = 31,508.30 : x
2. Step 2: Convert to fraction form
   67,039.22/100,553.59 = 31,508.30/x
3. Step 3: Cross multiply
   67,039.22x = 100,553.59 × 31,508.30
4. Step 4: Simplify right side
   67,039.22x = 3,168,272,679.80
5. Step 5: Solve for x
   x = 3,168,272,679.80/67,039.22
6. Step 6: Final answer
   x = 47,259.99