Finding the Fourth Proportional to 171,519.48, 257,304.12 and 53,200.34

Step by Step Solution

1. Step 1: Write the proportion equation
   171,519.48 : 257,304.12 = 53,200.34 : x
2. Step 2: Convert to fraction form
   171,519.48/257,304.12 = 53,200.34/x
3. Step 3: Cross multiply
   171,519.48x = 257,304.12 × 53,200.34
4. Step 4: Simplify right side
   171,519.48x = 13,688,666,667.40
5. Step 5: Solve for x
   x = 13,688,666,667.40/171,519.48
6. Step 6: Final answer
   x = 79,808.23