Finding the Fourth Proportional to 171,598.56, 257,113.32 and 121,429.98

Step by Step Solution

1. Step 1: Write the proportion equation
   171,598.56 : 257,113.32 = 121,429.98 : x
2. Step 2: Convert to fraction form
   171,598.56/257,113.32 = 121,429.98/x
3. Step 3: Cross multiply
   171,598.56x = 257,113.32 × 121,429.98
4. Step 4: Simplify right side
   171,598.56x = 31,221,265,305.33
5. Step 5: Solve for x
   x = 31,221,265,305.33/171,598.56
6. Step 6: Final answer
   x = 181,943.63