Finding the Fourth Proportional to 150,909.32, 208,273.22 and 86,402.52

Step by Step Solution

1. Step 1: Write the proportion equation
   150,909.32 : 208,273.22 = 86,402.52 : x
2. Step 2: Convert to fraction form
   150,909.32/208,273.22 = 86,402.52/x
3. Step 3: Cross multiply
   150,909.32x = 208,273.22 × 86,402.52
4. Step 4: Simplify right side
   150,909.32x = 17,995,331,056.51
5. Step 5: Solve for x
   x = 17,995,331,056.51/150,909.32
6. Step 6: Final answer
   x = 119,245.99