Finding the Fourth Proportional to 340,842.72, 511,267.32 and 91,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   340,842.72 : 511,267.32 = 91,524.72 : x
2. Step 2: Convert to fraction form
   340,842.72/511,267.32 = 91,524.72/x
3. Step 3: Cross multiply
   340,842.72x = 511,267.32 × 91,524.72
4. Step 4: Simplify right side
   340,842.72x = 46,793,598,308.15
5. Step 5: Solve for x
   x = 46,793,598,308.15/340,842.72
6. Step 6: Final answer
   x = 137,287.95