Finding the Fourth Proportional to 77,288.72, 106,667.28 and 43,306.38

Step by Step Solution

1. Step 1: Write the proportion equation
   77,288.72 : 106,667.28 = 43,306.38 : x
2. Step 2: Convert to fraction form
   77,288.72/106,667.28 = 43,306.38/x
3. Step 3: Cross multiply
   77,288.72x = 106,667.28 × 43,306.38
4. Step 4: Simplify right side
   77,288.72x = 4,619,373,761.25
5. Step 5: Solve for x
   x = 4,619,373,761.25/77,288.72
6. Step 6: Final answer
   x = 59,767.77