Finding the Fourth Proportional to 57,009.16, 85,513.42 and 19,595.40

Step by Step Solution

1. Step 1: Write the proportion equation
   57,009.16 : 85,513.42 = 19,595.40 : x
2. Step 2: Convert to fraction form
   57,009.16/85,513.42 = 19,595.40/x
3. Step 3: Cross multiply
   57,009.16x = 85,513.42 × 19,595.40
4. Step 4: Simplify right side
   57,009.16x = 1,675,669,670.27
5. Step 5: Solve for x
   x = 1,675,669,670.27/57,009.16
6. Step 6: Final answer
   x = 29,392.99