Finding the Fourth Proportional to 76,693, 105,836.36 and 43,159.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,693 : 105,836.36 = 43,159.72 : x
2. Step 2: Convert to fraction form
   76,693/105,836.36 = 43,159.72/x
3. Step 3: Cross multiply
   76,693x = 105,836.36 × 43,159.72
4. Step 4: Simplify right side
   76,693x = 4,567,867,663.42
5. Step 5: Solve for x
   x = 4,567,867,663.42/76,693
6. Step 6: Final answer
   x = 59,560.42