Finding the Fourth Proportional to 85,667.94, 128,486.42 and 23,323.86

Step by Step Solution

1. Step 1: Write the proportion equation
   85,667.94 : 128,486.42 = 23,323.86 : x
2. Step 2: Convert to fraction form
   85,667.94/128,486.42 = 23,323.86/x
3. Step 3: Cross multiply
   85,667.94x = 128,486.42 × 23,323.86
4. Step 4: Simplify right side
   85,667.94x = 2,996,799,271.98
5. Step 5: Solve for x
   x = 2,996,799,271.98/85,667.94
6. Step 6: Final answer
   x = 34,981.57