Finding the Fourth Proportional to 42,376.35, 63,585.18 and 17,423.90

Step by Step Solution

1. Step 1: Write the proportion equation
   42,376.35 : 63,585.18 = 17,423.90 : x
2. Step 2: Convert to fraction form
   42,376.35/63,585.18 = 17,423.90/x
3. Step 3: Cross multiply
   42,376.35x = 63,585.18 × 17,423.90
4. Step 4: Simplify right side
   42,376.35x = 1,107,901,499.88
5. Step 5: Solve for x
   x = 1,107,901,499.88/42,376.35
6. Step 6: Final answer
   x = 26,144.34