Finding the Fourth Proportional to 51,808.25, 71,498.01 and 30,587.06

Step by Step Solution

1. Step 1: Write the proportion equation
   51,808.25 : 71,498.01 = 30,587.06 : x
2. Step 2: Convert to fraction form
   51,808.25/71,498.01 = 30,587.06/x
3. Step 3: Cross multiply
   51,808.25x = 71,498.01 × 30,587.06
4. Step 4: Simplify right side
   51,808.25x = 2,186,913,921.75
5. Step 5: Solve for x
   x = 2,186,913,921.75/51,808.25
6. Step 6: Final answer
   x = 42,211.69