Finding the Fourth Proportional to 42,022.84, 63,035.36 and 10,858

Step by Step Solution

1. Step 1: Write the proportion equation
   42,022.84 : 63,035.36 = 10,858 : x
2. Step 2: Convert to fraction form
   42,022.84/63,035.36 = 10,858/x
3. Step 3: Cross multiply
   42,022.84x = 63,035.36 × 10,858
4. Step 4: Simplify right side
   42,022.84x = 684,437,938.88
5. Step 5: Solve for x
   x = 684,437,938.88/42,022.84
6. Step 6: Final answer
   x = 16,287.28