Finding the Fourth Proportional to 171,684.19, 257,558.54 and 69,109.34

Step by Step Solution

1. Step 1: Write the proportion equation
   171,684.19 : 257,558.54 = 69,109.34 : x
2. Step 2: Convert to fraction form
   171,684.19/257,558.54 = 69,109.34/x
3. Step 3: Cross multiply
   171,684.19x = 257,558.54 × 69,109.34
4. Step 4: Simplify right side
   171,684.19x = 17,799,699,077.42
5. Step 5: Solve for x
   x = 17,799,699,077.42/171,684.19
6. Step 6: Final answer
   x = 103,676.98