Finding the Fourth Proportional to 151,406.67, 208,875.55 and 90,118.49

Step by Step Solution

1. Step 1: Write the proportion equation
   151,406.67 : 208,875.55 = 90,118.49 : x
2. Step 2: Convert to fraction form
   151,406.67/208,875.55 = 90,118.49/x
3. Step 3: Cross multiply
   151,406.67x = 208,875.55 × 90,118.49
4. Step 4: Simplify right side
   151,406.67x = 18,823,549,598.29
5. Step 5: Solve for x
   x = 18,823,549,598.29/151,406.67
6. Step 6: Final answer
   x = 124,324.44