Finding the Fourth Proportional to 76,793.55, 105,983.69 and 42,805.14

Step by Step Solution

1. Step 1: Write the proportion equation
   76,793.55 : 105,983.69 = 42,805.14 : x
2. Step 2: Convert to fraction form
   76,793.55/105,983.69 = 42,805.14/x
3. Step 3: Cross multiply
   76,793.55x = 105,983.69 × 42,805.14
4. Step 4: Simplify right side
   76,793.55x = 4,536,646,688.17
5. Step 5: Solve for x
   x = 4,536,646,688.17/76,793.55
6. Step 6: Final answer
   x = 59,075.88