Finding the Fourth Proportional to 88,667.43, 122,361.06 and 56,836.40

Step by Step Solution

1. Step 1: Write the proportion equation
   88,667.43 : 122,361.06 = 56,836.40 : x
2. Step 2: Convert to fraction form
   88,667.43/122,361.06 = 56,836.40/x
3. Step 3: Cross multiply
   88,667.43x = 122,361.06 × 56,836.40
4. Step 4: Simplify right side
   88,667.43x = 6,954,561,538.78
5. Step 5: Solve for x
   x = 6,954,561,538.78/88,667.43
6. Step 6: Final answer
   x = 78,434.23