Finding the Fourth Proportional to 30,656.93, 42,307.82 and 17,228.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,656.93 : 42,307.82 = 17,228.15 : x
2. Step 2: Convert to fraction form
   30,656.93/42,307.82 = 17,228.15/x
3. Step 3: Cross multiply
   30,656.93x = 42,307.82 × 17,228.15
4. Step 4: Simplify right side
   30,656.93x = 728,885,171.45
5. Step 5: Solve for x
   x = 728,885,171.45/30,656.93
6. Step 6: Final answer
   x = 23,775.55