Finding the Fourth Proportional to 42,527.76, 63,805.30 and 12,951.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,527.76 : 63,805.30 = 12,951.32 : x
2. Step 2: Convert to fraction form
   42,527.76/63,805.30 = 12,951.32/x
3. Step 3: Cross multiply
   42,527.76x = 63,805.30 × 12,951.32
4. Step 4: Simplify right side
   42,527.76x = 826,362,858.00
5. Step 5: Solve for x
   x = 826,362,858.00/42,527.76
6. Step 6: Final answer
   x = 19,431.14