Finding the Fourth Proportional to 91,531.31, 126,323.82 and 55,742.27

Step by Step Solution

1. Step 1: Write the proportion equation
   91,531.31 : 126,323.82 = 55,742.27 : x
2. Step 2: Convert to fraction form
   91,531.31/126,323.82 = 55,742.27/x
3. Step 3: Cross multiply
   91,531.31x = 126,323.82 × 55,742.27
4. Step 4: Simplify right side
   91,531.31x = 7,041,575,850.25
5. Step 5: Solve for x
   x = 7,041,575,850.25/91,531.31
6. Step 6: Final answer
   x = 76,930.79