Finding the Fourth Proportional to 42,977.30, 64,439.42 and 14,890.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,977.30 : 64,439.42 = 14,890.82 : x
2. Step 2: Convert to fraction form
   42,977.30/64,439.42 = 14,890.82/x
3. Step 3: Cross multiply
   42,977.30x = 64,439.42 × 14,890.82
4. Step 4: Simplify right side
   42,977.30x = 959,555,804.12
5. Step 5: Solve for x
   x = 959,555,804.12/42,977.30
6. Step 6: Final answer
   x = 22,327.04