Finding the Fourth Proportional to 42,507.68, 63,763.81 and 12,923.27

Step by Step Solution

1. Step 1: Write the proportion equation
   42,507.68 : 63,763.81 = 12,923.27 : x
2. Step 2: Convert to fraction form
   42,507.68/63,763.81 = 12,923.27/x
3. Step 3: Cross multiply
   42,507.68x = 63,763.81 × 12,923.27
4. Step 4: Simplify right side
   42,507.68x = 824,036,932.86
5. Step 5: Solve for x
   x = 824,036,932.86/42,507.68
6. Step 6: Final answer
   x = 19,385.60