Finding the Fourth Proportional to 42,810.31, 64,199.49 and 14,722.41

Step by Step Solution

1. Step 1: Write the proportion equation
   42,810.31 : 64,199.49 = 14,722.41 : x
2. Step 2: Convert to fraction form
   42,810.31/64,199.49 = 14,722.41/x
3. Step 3: Cross multiply
   42,810.31x = 64,199.49 × 14,722.41
4. Step 4: Simplify right side
   42,810.31x = 945,171,213.57
5. Step 5: Solve for x
   x = 945,171,213.57/42,810.31
6. Step 6: Final answer
   x = 22,078.12