Finding the Fourth Proportional to 42,373.12, 63,562.72 and 11,208

Step by Step Solution

1. Step 1: Write the proportion equation
   42,373.12 : 63,562.72 = 11,208 : x
2. Step 2: Convert to fraction form
   42,373.12/63,562.72 = 11,208/x
3. Step 3: Cross multiply
   42,373.12x = 63,562.72 × 11,208
4. Step 4: Simplify right side
   42,373.12x = 712,410,965.76
5. Step 5: Solve for x
   x = 712,410,965.76/42,373.12
6. Step 6: Final answer
   x = 16,812.80