Finding the Fourth Proportional to 72,853.68, 109,039.95 and 51,464.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,853.68 : 109,039.95 = 51,464.82 : x
2. Step 2: Convert to fraction form
   72,853.68/109,039.95 = 51,464.82/x
3. Step 3: Cross multiply
   72,853.68x = 109,039.95 × 51,464.82
4. Step 4: Simplify right side
   72,853.68x = 5,611,721,399.56
5. Step 5: Solve for x
   x = 5,611,721,399.56/72,853.68
6. Step 6: Final answer
   x = 77,027.29