Finding the Fourth Proportional to 78,168, 107,960.94 and 52,973.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,168 : 107,960.94 = 52,973.76 : x
2. Step 2: Convert to fraction form
   78,168/107,960.94 = 52,973.76/x
3. Step 3: Cross multiply
   78,168x = 107,960.94 × 52,973.76
4. Step 4: Simplify right side
   78,168x = 5,719,096,924.93
5. Step 5: Solve for x
   x = 5,719,096,924.93/78,168
6. Step 6: Final answer
   x = 73,164.17