Finding the Fourth Proportional to 70,844.82, 106,194.33 and 31,420.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,844.82 : 106,194.33 = 31,420.50 : x
2. Step 2: Convert to fraction form
   70,844.82/106,194.33 = 31,420.50/x
3. Step 3: Cross multiply
   70,844.82x = 106,194.33 × 31,420.50
4. Step 4: Simplify right side
   70,844.82x = 3,336,678,945.77
5. Step 5: Solve for x
   x = 3,336,678,945.77/70,844.82
6. Step 6: Final answer
   x = 47,098.42