Finding the Fourth Proportional to 91,922.06, 126,866.25 and 56,132.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,922.06 : 126,866.25 = 56,132.72 : x
2. Step 2: Convert to fraction form
   91,922.06/126,866.25 = 56,132.72/x
3. Step 3: Cross multiply
   91,922.06x = 126,866.25 × 56,132.72
4. Step 4: Simplify right side
   91,922.06x = 7,121,347,054.37
5. Step 5: Solve for x
   x = 7,121,347,054.37/91,922.06
6. Step 6: Final answer
   x = 77,471.58