Finding the Fourth Proportional to 42,559.24, 58,705.14 and 30,603.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,559.24 : 58,705.14 = 30,603.64 : x
2. Step 2: Convert to fraction form
   42,559.24/58,705.14 = 30,603.64/x
3. Step 3: Cross multiply
   42,559.24x = 58,705.14 × 30,603.64
4. Step 4: Simplify right side
   42,559.24x = 1,796,590,970.71
5. Step 5: Solve for x
   x = 1,796,590,970.71/42,559.24
6. Step 6: Final answer
   x = 42,213.89