Finding the Fourth Proportional to 72,962.79, 109,110.66 and 53,039.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72,962.79 : 109,110.66 = 53,039.22 : x
2. Step 2: Convert to fraction form
   72,962.79/109,110.66 = 53,039.22/x
3. Step 3: Cross multiply
   72,962.79x = 109,110.66 × 53,039.22
4. Step 4: Simplify right side
   72,962.79x = 5,787,144,300.09
5. Step 5: Solve for x
   x = 5,787,144,300.09/72,962.79
6. Step 6: Final answer
   x = 79,316.38