Finding the Fourth Proportional to 30,901.83, 42,643.78 and 17,103.74

Step by Step Solution

1. Step 1: Write the proportion equation
   30,901.83 : 42,643.78 = 17,103.74 : x
2. Step 2: Convert to fraction form
   30,901.83/42,643.78 = 17,103.74/x
3. Step 3: Cross multiply
   30,901.83x = 42,643.78 × 17,103.74
4. Step 4: Simplify right side
   30,901.83x = 729,368,026.77
5. Step 5: Solve for x
   x = 729,368,026.77/30,901.83
6. Step 6: Final answer
   x = 23,602.75