Finding the Fourth Proportional to 123,277.86, 170,002.56 and 74,886.84

Step by Step Solution

1. Step 1: Write the proportion equation
   123,277.86 : 170,002.56 = 74,886.84 : x
2. Step 2: Convert to fraction form
   123,277.86/170,002.56 = 74,886.84/x
3. Step 3: Cross multiply
   123,277.86x = 170,002.56 × 74,886.84
4. Step 4: Simplify right side
   123,277.86x = 12,730,954,510.31
5. Step 5: Solve for x
   x = 12,730,954,510.31/123,277.86
6. Step 6: Final answer
   x = 103,270.40