Finding the Fourth Proportional to 43,304.10, 64,812.15 and 31,424.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,304.10 : 64,812.15 = 31,424.10 : x
2. Step 2: Convert to fraction form
   43,304.10/64,812.15 = 31,424.10/x
3. Step 3: Cross multiply
   43,304.10x = 64,812.15 × 31,424.10
4. Step 4: Simplify right side
   43,304.10x = 2,036,663,482.82
5. Step 5: Solve for x
   x = 2,036,663,482.82/43,304.10
6. Step 6: Final answer
   x = 47,031.65