Finding the Fourth Proportional to 99,171.69, 136,914.17 and 75,256.53

Step by Step Solution

1. Step 1: Write the proportion equation
   99,171.69 : 136,914.17 = 75,256.53 : x
2. Step 2: Convert to fraction form
   99,171.69/136,914.17 = 75,256.53/x
3. Step 3: Cross multiply
   99,171.69x = 136,914.17 × 75,256.53
4. Step 4: Simplify right side
   99,171.69x = 10,303,684,965.75
5. Step 5: Solve for x
   x = 10,303,684,965.75/99,171.69
6. Step 6: Final answer
   x = 103,897.44