Finding the Fourth Proportional to 116,239,983.12, 160,411,185.37 and 64,029,018.78

Step by Step Solution

1. Step 1: Write the proportion equation
   116,239,983.12 : 160,411,185.37 = 64,029,018.78 : x
2. Step 2: Convert to fraction form
   116,239,983.12/160,411,185.37 = 64,029,018.78/x
3. Step 3: Cross multiply
   116,239,983.12x = 160,411,185.37 × 64,029,018.78
4. Step 4: Simplify right side
   116,239,983.12x = 10,270,970,800,726,574
5. Step 5: Solve for x
   x = 10,270,970,800,726,574/116,239,983.12
6. Step 6: Final answer
   x = 88,360,050.69