Finding the Fourth Proportional to 43,146.12, 64,636.22 and 31,112.22

Step by Step Solution

1. Step 1: Write the proportion equation
   43,146.12 : 64,636.22 = 31,112.22 : x
2. Step 2: Convert to fraction form
   43,146.12/64,636.22 = 31,112.22/x
3. Step 3: Cross multiply
   43,146.12x = 64,636.22 × 31,112.22
4. Step 4: Simplify right side
   43,146.12x = 2,010,976,296.61
5. Step 5: Solve for x
   x = 2,010,976,296.61/43,146.12
6. Step 6: Final answer
   x = 46,608.51