Finding the Fourth Proportional to 151,488, 209,057.76 and 84,424.32

Step by Step Solution

1. Step 1: Write the proportion equation
   151,488 : 209,057.76 = 84,424.32 : x
2. Step 2: Convert to fraction form
   151,488/209,057.76 = 84,424.32/x
3. Step 3: Cross multiply
   151,488x = 209,057.76 × 84,424.32
4. Step 4: Simplify right side
   151,488x = 17,649,559,228.72
5. Step 5: Solve for x
   x = 17,649,559,228.72/151,488
6. Step 6: Final answer
   x = 116,507.97