Finding the Fourth Proportional to 72,089.30, 107,921.02 and 53,244.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,089.30 : 107,921.02 = 53,244.18 : x
2. Step 2: Convert to fraction form
   72,089.30/107,921.02 = 53,244.18/x
3. Step 3: Cross multiply
   72,089.30x = 107,921.02 × 53,244.18
4. Step 4: Simplify right side
   72,089.30x = 5,746,165,541.95
5. Step 5: Solve for x
   x = 5,746,165,541.95/72,089.30
6. Step 6: Final answer
   x = 79,709.00