Finding the Fourth Proportional to 30,876.63, 42,578.52 and 27,462.86

Step by Step Solution

1. Step 1: Write the proportion equation
   30,876.63 : 42,578.52 = 27,462.86 : x
2. Step 2: Convert to fraction form
   30,876.63/42,578.52 = 27,462.86/x
3. Step 3: Cross multiply
   30,876.63x = 42,578.52 × 27,462.86
4. Step 4: Simplify right side
   30,876.63x = 1,169,327,933.77
5. Step 5: Solve for x
   x = 1,169,327,933.77/30,876.63
6. Step 6: Final answer
   x = 37,870.97