Finding the Fourth Proportional to 53,072.58, 73,240.78 and 30,411.12

Step by Step Solution

1. Step 1: Write the proportion equation
   53,072.58 : 73,240.78 = 30,411.12 : x
2. Step 2: Convert to fraction form
   53,072.58/73,240.78 = 30,411.12/x
3. Step 3: Cross multiply
   53,072.58x = 73,240.78 × 30,411.12
4. Step 4: Simplify right side
   53,072.58x = 2,227,334,149.47
5. Step 5: Solve for x
   x = 2,227,334,149.47/53,072.58
6. Step 6: Final answer
   x = 41,967.70