Finding the Fourth Proportional to 105,892.32, 145,667.04 and 88,571.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,892.32 : 145,667.04 = 88,571.52 : x
2. Step 2: Convert to fraction form
   105,892.32/145,667.04 = 88,571.52/x
3. Step 3: Cross multiply
   105,892.32x = 145,667.04 × 88,571.52
4. Step 4: Simplify right side
   105,892.32x = 12,901,951,146.70
5. Step 5: Solve for x
   x = 12,901,951,146.70/105,892.32
6. Step 6: Final answer
   x = 121,840.29