Finding the Fourth Proportional to 42,675.58, 58,848.33 and 28,330.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42,675.58 : 58,848.33 = 28,330.21 : x
2. Step 2: Convert to fraction form
   42,675.58/58,848.33 = 28,330.21/x
3. Step 3: Cross multiply
   42,675.58x = 58,848.33 × 28,330.21
4. Step 4: Simplify right side
   42,675.58x = 1,667,185,547.05
5. Step 5: Solve for x
   x = 1,667,185,547.05/42,675.58
6. Step 6: Final answer
   x = 39,066.50