Finding the Fourth Proportional to 114,870.33, 172,389.74 and 75,413.61

Step by Step Solution

1. Step 1: Write the proportion equation
   114,870.33 : 172,389.74 = 75,413.61 : x
2. Step 2: Convert to fraction form
   114,870.33/172,389.74 = 75,413.61/x
3. Step 3: Cross multiply
   114,870.33x = 172,389.74 × 75,413.61
4. Step 4: Simplify right side
   114,870.33x = 13,000,532,243.29
5. Step 5: Solve for x
   x = 13,000,532,243.29/114,870.33
6. Step 6: Final answer
   x = 113,175.72