Finding the Fourth Proportional to 57,168.99, 85,606.60 and 37,389.87

Step by Step Solution

1. Step 1: Write the proportion equation
   57,168.99 : 85,606.60 = 37,389.87 : x
2. Step 2: Convert to fraction form
   57,168.99/85,606.60 = 37,389.87/x
3. Step 3: Cross multiply
   57,168.99x = 85,606.60 × 37,389.87
4. Step 4: Simplify right side
   57,168.99x = 3,200,819,123.63
5. Step 5: Solve for x
   x = 3,200,819,123.63/57,168.99
6. Step 6: Final answer
   x = 55,988.73