Finding the Fourth Proportional to 57,428.01, 86,171.46 and 23,719.05

Step by Step Solution

1. Step 1: Write the proportion equation
   57,428.01 : 86,171.46 = 23,719.05 : x
2. Step 2: Convert to fraction form
   57,428.01/86,171.46 = 23,719.05/x
3. Step 3: Cross multiply
   57,428.01x = 86,171.46 × 23,719.05
4. Step 4: Simplify right side
   57,428.01x = 2,043,905,168.31
5. Step 5: Solve for x
   x = 2,043,905,168.31/57,428.01
6. Step 6: Final answer
   x = 35,590.74