Finding the Fourth Proportional to 30,903.83, 42,645.50 and 17,477.90

Step by Step Solution

1. Step 1: Write the proportion equation
   30,903.83 : 42,645.50 = 17,477.90 : x
2. Step 2: Convert to fraction form
   30,903.83/42,645.50 = 17,477.90/x
3. Step 3: Cross multiply
   30,903.83x = 42,645.50 × 17,477.90
4. Step 4: Simplify right side
   30,903.83x = 745,353,803.67
5. Step 5: Solve for x
   x = 745,353,803.67/30,903.83
6. Step 6: Final answer
   x = 24,118.49