Finding the Fourth Proportional to 151,451.78, 209,002.48 and 83,468.81

Step by Step Solution

1. Step 1: Write the proportion equation
   151,451.78 : 209,002.48 = 83,468.81 : x
2. Step 2: Convert to fraction form
   151,451.78/209,002.48 = 83,468.81/x
3. Step 3: Cross multiply
   151,451.78x = 209,002.48 × 83,468.81
4. Step 4: Simplify right side
   151,451.78x = 17,445,188,606.48
5. Step 5: Solve for x
   x = 17,445,188,606.48/151,451.78
6. Step 6: Final answer
   x = 115,186.43