Finding the Fourth Proportional to 89,704.95, 123,770.48 and 57,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,704.95 : 123,770.48 = 57,835.50 : x
2. Step 2: Convert to fraction form
   89,704.95/123,770.48 = 57,835.50/x
3. Step 3: Cross multiply
   89,704.95x = 123,770.48 × 57,835.50
4. Step 4: Simplify right side
   89,704.95x = 7,158,327,306.86
5. Step 5: Solve for x
   x = 7,158,327,306.86/89,704.95
6. Step 6: Final answer
   x = 79,798.58