Finding the Fourth Proportional to 89,451, 123,357.60 and 58,770.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,451 : 123,357.60 = 58,770.12 : x
2. Step 2: Convert to fraction form
   89,451/123,357.60 = 58,770.12/x
3. Step 3: Cross multiply
   89,451x = 123,357.60 × 58,770.12
4. Step 4: Simplify right side
   89,451x = 7,249,740,954.91
5. Step 5: Solve for x
   x = 7,249,740,954.91/89,451
6. Step 6: Final answer
   x = 81,047.06