Finding the Fourth Proportional to 34,780.66, 52,054.35 and 28,540.42

Step by Step Solution

1. Step 1: Write the proportion equation
   34,780.66 : 52,054.35 = 28,540.42 : x
2. Step 2: Convert to fraction form
   34,780.66/52,054.35 = 28,540.42/x
3. Step 3: Cross multiply
   34,780.66x = 52,054.35 × 28,540.42
4. Step 4: Simplify right side
   34,780.66x = 1,485,653,011.83
5. Step 5: Solve for x
   x = 1,485,653,011.83/34,780.66
6. Step 6: Final answer
   x = 42,714.92