Finding the Fourth Proportional to 40,212.63, 55,492.83 and 22,307.31

Step by Step Solution

1. Step 1: Write the proportion equation
   40,212.63 : 55,492.83 = 22,307.31 : x
2. Step 2: Convert to fraction form
   40,212.63/55,492.83 = 22,307.31/x
3. Step 3: Cross multiply
   40,212.63x = 55,492.83 × 22,307.31
4. Step 4: Simplify right side
   40,212.63x = 1,237,895,761.59
5. Step 5: Solve for x
   x = 1,237,895,761.59/40,212.63
6. Step 6: Final answer
   x = 30,783.76