Finding the Fourth Proportional to 151,397.10, 208,880.71 and 90,981.23

Step by Step Solution

1. Step 1: Write the proportion equation
   151,397.10 : 208,880.71 = 90,981.23 : x
2. Step 2: Convert to fraction form
   151,397.10/208,880.71 = 90,981.23/x
3. Step 3: Cross multiply
   151,397.10x = 208,880.71 × 90,981.23
4. Step 4: Simplify right side
   151,397.10x = 19,004,222,647.22
5. Step 5: Solve for x
   x = 19,004,222,647.22/151,397.10
6. Step 6: Final answer
   x = 125,525.67