Finding the Fourth Proportional to 103,538.02, 142,529.84 and 76,629.82

Step by Step Solution

1. Step 1: Write the proportion equation
   103,538.02 : 142,529.84 = 76,629.82 : x
2. Step 2: Convert to fraction form
   103,538.02/142,529.84 = 76,629.82/x
3. Step 3: Cross multiply
   103,538.02x = 142,529.84 × 76,629.82
4. Step 4: Simplify right side
   103,538.02x = 10,922,035,983.83
5. Step 5: Solve for x
   x = 10,922,035,983.83/103,538.02
6. Step 6: Final answer
   x = 105,488.17