Finding the Fourth Proportional to 105,480, 158,245.92 and 31,608

Step by Step Solution

1. Step 1: Write the proportion equation
   105,480 : 158,245.92 = 31,608 : x
2. Step 2: Convert to fraction form
   105,480/158,245.92 = 31,608/x
3. Step 3: Cross multiply
   105,480x = 158,245.92 × 31,608
4. Step 4: Simplify right side
   105,480x = 5,001,837,039.36
5. Step 5: Solve for x
   x = 5,001,837,039.36/105,480
6. Step 6: Final answer
   x = 47,419.77