Finding the Fourth Proportional to 42,557.24, 58,702.38 and 30,601.64

Step by Step Solution

1. Step 1: Write the proportion equation
   42,557.24 : 58,702.38 = 30,601.64 : x
2. Step 2: Convert to fraction form
   42,557.24/58,702.38 = 30,601.64/x
3. Step 3: Cross multiply
   42,557.24x = 58,702.38 × 30,601.64
4. Step 4: Simplify right side
   42,557.24x = 1,796,389,099.90
5. Step 5: Solve for x
   x = 1,796,389,099.90/42,557.24
6. Step 6: Final answer
   x = 42,211.13