Finding the Fourth Proportional to 171,074,859.40, 256,108,404.30 and 161,109,137.80

Step by Step Solution

1. Step 1: Write the proportion equation
   171,074,859.40 : 256,108,404.30 = 161,109,137.80 : x
2. Step 2: Convert to fraction form
   171,074,859.40/256,108,404.30 = 161,109,137.80/x
3. Step 3: Cross multiply
   171,074,859.40x = 256,108,404.30 × 161,109,137.80
4. Step 4: Simplify right side
   171,074,859.40x = 41,261,404,200,106,816
5. Step 5: Solve for x
   x = 41,261,404,200,106,816/171,074,859.40
6. Step 6: Final answer
   x = 241,189,174.99