Finding the Fourth Proportional to 42,808.03, 59,071.06 and 28,982.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,808.03 : 59,071.06 = 28,982.25 : x
2. Step 2: Convert to fraction form
   42,808.03/59,071.06 = 28,982.25/x
3. Step 3: Cross multiply
   42,808.03x = 59,071.06 × 28,982.25
4. Step 4: Simplify right side
   42,808.03x = 1,712,012,228.69
5. Step 5: Solve for x
   x = 1,712,012,228.69/42,808.03
6. Step 6: Final answer
   x = 39,992.78