Finding the Fourth Proportional to 72,427.68, 108,682.56 and 39,146.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,427.68 : 108,682.56 = 39,146.94 : x
2. Step 2: Convert to fraction form
   72,427.68/108,682.56 = 39,146.94/x
3. Step 3: Cross multiply
   72,427.68x = 108,682.56 × 39,146.94
4. Step 4: Simplify right side
   72,427.68x = 4,254,589,655.37
5. Step 5: Solve for x
   x = 4,254,589,655.37/72,427.68
6. Step 6: Final answer
   x = 58,742.59