Finding the Fourth Proportional to 107,143.57, 160,242.32 and 64,906.93

Step by Step Solution

1. Step 1: Write the proportion equation
   107,143.57 : 160,242.32 = 64,906.93 : x
2. Step 2: Convert to fraction form
   107,143.57/160,242.32 = 64,906.93/x
3. Step 3: Cross multiply
   107,143.57x = 160,242.32 × 64,906.93
4. Step 4: Simplify right side
   107,143.57x = 10,400,836,722.74
5. Step 5: Solve for x
   x = 10,400,836,722.74/107,143.57
6. Step 6: Final answer
   x = 97,073.83