Finding the Fourth Proportional to 89,818.80, 134,562.15 and 52,396.80

Step by Step Solution

1. Step 1: Write the proportion equation
   89,818.80 : 134,562.15 = 52,396.80 : x
2. Step 2: Convert to fraction form
   89,818.80/134,562.15 = 52,396.80/x
3. Step 3: Cross multiply
   89,818.80x = 134,562.15 × 52,396.80
4. Step 4: Simplify right side
   89,818.80x = 7,050,626,061.12
5. Step 5: Solve for x
   x = 7,050,626,061.12/89,818.80
6. Step 6: Final answer
   x = 78,498.33