Finding the Fourth Proportional to 89,739.86, 134,566.96 and 52,310.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,739.86 : 134,566.96 = 52,310.72 : x
2. Step 2: Convert to fraction form
   89,739.86/134,566.96 = 52,310.72/x
3. Step 3: Cross multiply
   89,739.86x = 134,566.96 × 52,310.72
4. Step 4: Simplify right side
   89,739.86x = 7,039,294,565.81
5. Step 5: Solve for x
   x = 7,039,294,565.81/89,739.86
6. Step 6: Final answer
   x = 78,441.11