Finding the Fourth Proportional to 91,212.41, 136,783.76 and 43,814.32

Step by Step Solution

1. Step 1: Write the proportion equation
   91,212.41 : 136,783.76 = 43,814.32 : x
2. Step 2: Convert to fraction form
   91,212.41/136,783.76 = 43,814.32/x
3. Step 3: Cross multiply
   91,212.41x = 136,783.76 × 43,814.32
4. Step 4: Simplify right side
   91,212.41x = 5,993,086,870.41
5. Step 5: Solve for x
   x = 5,993,086,870.41/91,212.41
6. Step 6: Final answer
   x = 65,704.73