Finding the Fourth Proportional to 314,028.24, 471,031.56 and 89,390.04

Step by Step Solution

1. Step 1: Write the proportion equation
   314,028.24 : 471,031.56 = 89,390.04 : x
2. Step 2: Convert to fraction form
   314,028.24/471,031.56 = 89,390.04/x
3. Step 3: Cross multiply
   314,028.24x = 471,031.56 × 89,390.04
4. Step 4: Simplify right side
   314,028.24x = 42,105,529,989.66
5. Step 5: Solve for x
   x = 42,105,529,989.66/314,028.24
6. Step 6: Final answer
   x = 134,081.99