Finding the Fourth Proportional to 72,736.11, 109,085.94 and 51,614.55

Step by Step Solution

1. Step 1: Write the proportion equation
   72,736.11 : 109,085.94 = 51,614.55 : x
2. Step 2: Convert to fraction form
   72,736.11/109,085.94 = 51,614.55/x
3. Step 3: Cross multiply
   72,736.11x = 109,085.94 × 51,614.55
4. Step 4: Simplify right side
   72,736.11x = 5,630,421,704.43
5. Step 5: Solve for x
   x = 5,630,421,704.43/72,736.11
6. Step 6: Final answer
   x = 77,408.89