Finding the Fourth Proportional to 49,973.62, 74,938.56 and 18,787

Step by Step Solution

1. Step 1: Write the proportion equation
   49,973.62 : 74,938.56 = 18,787 : x
2. Step 2: Convert to fraction form
   49,973.62/74,938.56 = 18,787/x
3. Step 3: Cross multiply
   49,973.62x = 74,938.56 × 18,787
4. Step 4: Simplify right side
   49,973.62x = 1,407,870,726.72
5. Step 5: Solve for x
   x = 1,407,870,726.72/49,973.62
6. Step 6: Final answer
   x = 28,172.28