Finding the Fourth Proportional to 28,606.50, 42,859.71 and 19,846.98

Step by Step Solution

1. Step 1: Write the proportion equation
   28,606.50 : 42,859.71 = 19,846.98 : x
2. Step 2: Convert to fraction form
   28,606.50/42,859.71 = 19,846.98/x
3. Step 3: Cross multiply
   28,606.50x = 42,859.71 × 19,846.98
4. Step 4: Simplify right side
   28,606.50x = 850,635,807.18
5. Step 5: Solve for x
   x = 850,635,807.18/28,606.50
6. Step 6: Final answer
   x = 29,735.75