Finding the Fourth Proportional to 30,930.96, 42,684.72 and 17,501.91

Step by Step Solution

1. Step 1: Write the proportion equation
   30,930.96 : 42,684.72 = 17,501.91 : x
2. Step 2: Convert to fraction form
   30,930.96/42,684.72 = 17,501.91/x
3. Step 3: Cross multiply
   30,930.96x = 42,684.72 × 17,501.91
4. Step 4: Simplify right side
   30,930.96x = 747,064,127.82
5. Step 5: Solve for x
   x = 747,064,127.82/30,930.96
6. Step 6: Final answer
   x = 24,152.63