Finding the Fourth Proportional to 34,043.38, 51,047.79 and 12,980.14

Step by Step Solution

1. Step 1: Write the proportion equation
   34,043.38 : 51,047.79 = 12,980.14 : x
2. Step 2: Convert to fraction form
   34,043.38/51,047.79 = 12,980.14/x
3. Step 3: Cross multiply
   34,043.38x = 51,047.79 × 12,980.14
4. Step 4: Simplify right side
   34,043.38x = 662,607,460.89
5. Step 5: Solve for x
   x = 662,607,460.89/34,043.38
6. Step 6: Final answer
   x = 19,463.62