Finding the Fourth Proportional to 42,390.30, 63,582.33 and 17,423.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,390.30 : 63,582.33 = 17,423.58 : x
2. Step 2: Convert to fraction form
   42,390.30/63,582.33 = 17,423.58/x
3. Step 3: Cross multiply
   42,390.30x = 63,582.33 × 17,423.58
4. Step 4: Simplify right side
   42,390.30x = 1,107,831,813.34
5. Step 5: Solve for x
   x = 1,107,831,813.34/42,390.30
6. Step 6: Final answer
   x = 26,134.09