Finding the Fourth Proportional to 91,871.34, 126,796.32 and 56,082.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,871.34 : 126,796.32 = 56,082.18 : x
2. Step 2: Convert to fraction form
   91,871.34/126,796.32 = 56,082.18/x
3. Step 3: Cross multiply
   91,871.34x = 126,796.32 × 56,082.18
4. Step 4: Simplify right side
   91,871.34x = 7,111,014,041.58
5. Step 5: Solve for x
   x = 7,111,014,041.58/91,871.34
6. Step 6: Final answer
   x = 77,401.88