Finding the Fourth Proportional to 101,993.86, 152,990.76 and 31,873.18

Step by Step Solution

1. Step 1: Write the proportion equation
   101,993.86 : 152,990.76 = 31,873.18 : x
2. Step 2: Convert to fraction form
   101,993.86/152,990.76 = 31,873.18/x
3. Step 3: Cross multiply
   101,993.86x = 152,990.76 × 31,873.18
4. Step 4: Simplify right side
   101,993.86x = 4,876,302,031.82
5. Step 5: Solve for x
   x = 4,876,302,031.82/101,993.86
6. Step 6: Final answer
   x = 47,809.76