Finding the Fourth Proportional to 85,667.94, 128,487.87 and 23,343.30

Step by Step Solution

1. Step 1: Write the proportion equation
   85,667.94 : 128,487.87 = 23,343.30 : x
2. Step 2: Convert to fraction form
   85,667.94/128,487.87 = 23,343.30/x
3. Step 3: Cross multiply
   85,667.94x = 128,487.87 × 23,343.30
4. Step 4: Simplify right side
   85,667.94x = 2,999,330,895.77
5. Step 5: Solve for x
   x = 2,999,330,895.77/85,667.94
6. Step 6: Final answer
   x = 35,011.12