Finding the Fourth Proportional to 42,587.10, 63,880.38 and 13,004.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,587.10 : 63,880.38 = 13,004.82 : x
2. Step 2: Convert to fraction form
   42,587.10/63,880.38 = 13,004.82/x
3. Step 3: Cross multiply
   42,587.10x = 63,880.38 × 13,004.82
4. Step 4: Simplify right side
   42,587.10x = 830,752,843.43
5. Step 5: Solve for x
   x = 830,752,843.43/42,587.10
6. Step 6: Final answer
   x = 19,507.15