Finding the Fourth Proportional to 50,012, 75,018.72 and 13,076

Step by Step Solution

1. Step 1: Write the proportion equation
   50,012 : 75,018.72 = 13,076 : x
2. Step 2: Convert to fraction form
   50,012/75,018.72 = 13,076/x
3. Step 3: Cross multiply
   50,012x = 75,018.72 × 13,076
4. Step 4: Simplify right side
   50,012x = 980,944,782.72
5. Step 5: Solve for x
   x = 980,944,782.72/50,012
6. Step 6: Final answer
   x = 19,614.19