Finding the Fourth Proportional to 91,741.56, 126,603.31 and 53,493.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,741.56 : 126,603.31 = 53,493.72 : x
2. Step 2: Convert to fraction form
   91,741.56/126,603.31 = 53,493.72/x
3. Step 3: Cross multiply
   91,741.56x = 126,603.31 × 53,493.72
4. Step 4: Simplify right side
   91,741.56x = 6,772,482,016.21
5. Step 5: Solve for x
   x = 6,772,482,016.21/91,741.56
6. Step 6: Final answer
   x = 73,821.31