Finding the Fourth Proportional to 91,467.80, 126,210.50 and 57,452.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,467.80 : 126,210.50 = 57,452.06 : x
2. Step 2: Convert to fraction form
   91,467.80/126,210.50 = 57,452.06/x
3. Step 3: Cross multiply
   91,467.80x = 126,210.50 × 57,452.06
4. Step 4: Simplify right side
   91,467.80x = 7,251,052,300.32
5. Step 5: Solve for x
   x = 7,251,052,300.32/91,467.80
6. Step 6: Final answer
   x = 79,274.38