Finding the Fourth Proportional to 42,282.02, 58,388.42 and 31,653.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,282.02 : 58,388.42 = 31,653.20 : x
2. Step 2: Convert to fraction form
   42,282.02/58,388.42 = 31,653.20/x
3. Step 3: Cross multiply
   42,282.02x = 58,388.42 × 31,653.20
4. Step 4: Simplify right side
   42,282.02x = 1,848,180,561.05
5. Step 5: Solve for x
   x = 1,848,180,561.05/42,282.02
6. Step 6: Final answer
   x = 43,710.79