Finding the Fourth Proportional to 42,526.82, 63,785.68 and 12,944.91

Step by Step Solution

1. Step 1: Write the proportion equation
   42,526.82 : 63,785.68 = 12,944.91 : x
2. Step 2: Convert to fraction form
   42,526.82/63,785.68 = 12,944.91/x
3. Step 3: Cross multiply
   42,526.82x = 63,785.68 × 12,944.91
4. Step 4: Simplify right side
   42,526.82x = 825,700,093.72
5. Step 5: Solve for x
   x = 825,700,093.72/42,526.82
6. Step 6: Final answer
   x = 19,415.98