Finding the Fourth Proportional to 30,801.69, 42,516.93 and 18,058.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,801.69 : 42,516.93 = 18,058.98 : x
2. Step 2: Convert to fraction form
   30,801.69/42,516.93 = 18,058.98/x
3. Step 3: Cross multiply
   30,801.69x = 42,516.93 × 18,058.98
4. Step 4: Simplify right side
   30,801.69x = 767,812,388.53
5. Step 5: Solve for x
   x = 767,812,388.53/30,801.69
6. Step 6: Final answer
   x = 24,927.61