Finding the Fourth Proportional to 233,078,544.06, 321,648,342.27 and 128,656,588.14

Step by Step Solution

1. Step 1: Write the proportion equation
   233,078,544.06 : 321,648,342.27 = 128,656,588.14 : x
2. Step 2: Convert to fraction form
   233,078,544.06/321,648,342.27 = 128,656,588.14/x
3. Step 3: Cross multiply
   233,078,544.06x = 321,648,342.27 × 128,656,588.14
4. Step 4: Simplify right side
   233,078,544.06x = 41,382,178,297,345,144
5. Step 5: Solve for x
   x = 41,382,178,297,345,144/233,078,544.06
6. Step 6: Final answer
   x = 177,546,064.84