Finding the Fourth Proportional to 42,599.62, 63,908.82 and 13,019.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42,599.62 : 63,908.82 = 13,019.77 : x
2. Step 2: Convert to fraction form
   42,599.62/63,908.82 = 13,019.77/x
3. Step 3: Cross multiply
   42,599.62x = 63,908.82 × 13,019.77
4. Step 4: Simplify right side
   42,599.62x = 832,078,137.37
5. Step 5: Solve for x
   x = 832,078,137.37/42,599.62
6. Step 6: Final answer
   x = 19,532.52