Finding the Fourth Proportional to 91,514.86, 126,286.72 and 53,275.40

Step by Step Solution

1. Step 1: Write the proportion equation
   91,514.86 : 126,286.72 = 53,275.40 : x
2. Step 2: Convert to fraction form
   91,514.86/126,286.72 = 53,275.40/x
3. Step 3: Cross multiply
   91,514.86x = 126,286.72 × 53,275.40
4. Step 4: Simplify right side
   91,514.86x = 6,727,975,026.30
5. Step 5: Solve for x
   x = 6,727,975,026.30/91,514.86
6. Step 6: Final answer
   x = 73,517.84