Finding the Fourth Proportional to 314,475.34, 471,786.80 and 89,839

Step by Step Solution

1. Step 1: Write the proportion equation
   314,475.34 : 471,786.80 = 89,839 : x
2. Step 2: Convert to fraction form
   314,475.34/471,786.80 = 89,839/x
3. Step 3: Cross multiply
   314,475.34x = 471,786.80 × 89,839
4. Step 4: Simplify right side
   314,475.34x = 42,384,854,325.20
5. Step 5: Solve for x
   x = 42,384,854,325.20/314,475.34
6. Step 6: Final answer
   x = 134,779.58