Finding the Fourth Proportional to 52,670.24, 72,689.77 and 30,012.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52,670.24 : 72,689.77 = 30,012.31 : x
2. Step 2: Convert to fraction form
   52,670.24/72,689.77 = 30,012.31/x
3. Step 3: Cross multiply
   52,670.24x = 72,689.77 × 30,012.31
4. Step 4: Simplify right side
   52,670.24x = 2,181,587,911.07
5. Step 5: Solve for x
   x = 2,181,587,911.07/52,670.24
6. Step 6: Final answer
   x = 41,419.75