Finding the Fourth Proportional to 163,104.67, 225,096.71 and 90,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   163,104.67 : 225,096.71 = 90,521.25 : x
2. Step 2: Convert to fraction form
   163,104.67/225,096.71 = 90,521.25/x
3. Step 3: Cross multiply
   163,104.67x = 225,096.71 × 90,521.25
4. Step 4: Simplify right side
   163,104.67x = 20,376,034,263.37
5. Step 5: Solve for x
   x = 20,376,034,263.37/163,104.67
6. Step 6: Final answer
   x = 124,926.12