Finding the Fourth Proportional to 50,742.32, 76,111.65 and 13,302.09

Step by Step Solution

1. Step 1: Write the proportion equation
   50,742.32 : 76,111.65 = 13,302.09 : x
2. Step 2: Convert to fraction form
   50,742.32/76,111.65 = 13,302.09/x
3. Step 3: Cross multiply
   50,742.32x = 76,111.65 × 13,302.09
4. Step 4: Simplify right side
   50,742.32x = 1,012,444,018.35
5. Step 5: Solve for x
   x = 1,012,444,018.35/50,742.32
6. Step 6: Final answer
   x = 19,952.66