Finding the Fourth Proportional to 57,300.58, 85,952.00 and 19,861.87

Step by Step Solution

1. Step 1: Write the proportion equation
   57,300.58 : 85,952.00 = 19,861.87 : x
2. Step 2: Convert to fraction form
   57,300.58/85,952.00 = 19,861.87/x
3. Step 3: Cross multiply
   57,300.58x = 85,952.00 × 19,861.87
4. Step 4: Simplify right side
   57,300.58x = 1,707,166,921.17
5. Step 5: Solve for x
   x = 1,707,166,921.17/57,300.58
6. Step 6: Final answer
   x = 29,793.19