Finding the Fourth Proportional to 50,900.30, 70,196.42 and 31,781.84

Step by Step Solution

1. Step 1: Write the proportion equation
   50,900.30 : 70,196.42 = 31,781.84 : x
2. Step 2: Convert to fraction form
   50,900.30/70,196.42 = 31,781.84/x
3. Step 3: Cross multiply
   50,900.30x = 70,196.42 × 31,781.84
4. Step 4: Simplify right side
   50,900.30x = 2,230,971,389.01
5. Step 5: Solve for x
   x = 2,230,971,389.01/50,900.30
6. Step 6: Final answer
   x = 43,830.22