Finding the Fourth Proportional to 76,770.72, 105,925.05 and 43,236.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,770.72 : 105,925.05 = 43,236.72 : x
2. Step 2: Convert to fraction form
   76,770.72/105,925.05 = 43,236.72/x
3. Step 3: Cross multiply
   76,770.72x = 105,925.05 × 43,236.72
4. Step 4: Simplify right side
   76,770.72x = 4,579,851,727.84
5. Step 5: Solve for x
   x = 4,579,851,727.84/76,770.72
6. Step 6: Final answer
   x = 59,656.23