Finding the Fourth Proportional to 123,868.47, 170,913.42 and 75,437.94

Step by Step Solution

1. Step 1: Write the proportion equation
   123,868.47 : 170,913.42 = 75,437.94 : x
2. Step 2: Convert to fraction form
   123,868.47/170,913.42 = 75,437.94/x
3. Step 3: Cross multiply
   123,868.47x = 170,913.42 × 75,437.94
4. Step 4: Simplify right side
   123,868.47x = 12,893,356,323.15
5. Step 5: Solve for x
   x = 12,893,356,323.15/123,868.47
6. Step 6: Final answer
   x = 104,089.09