Finding the Fourth Proportional to 55,389, 76,437.14 and 30,238.76

Step by Step Solution

1. Step 1: Write the proportion equation
   55,389 : 76,437.14 = 30,238.76 : x
2. Step 2: Convert to fraction form
   55,389/76,437.14 = 30,238.76/x
3. Step 3: Cross multiply
   55,389x = 76,437.14 × 30,238.76
4. Step 4: Simplify right side
   55,389x = 2,311,364,331.55
5. Step 5: Solve for x
   x = 2,311,364,331.55/55,389
6. Step 6: Final answer
   x = 41,729.66