Finding the Fourth Proportional to 76,791.04, 105,967.90 and 42,803.24

Step by Step Solution

1. Step 1: Write the proportion equation
   76,791.04 : 105,967.90 = 42,803.24 : x
2. Step 2: Convert to fraction form
   76,791.04/105,967.90 = 42,803.24/x
3. Step 3: Cross multiply
   76,791.04x = 105,967.90 × 42,803.24
4. Step 4: Simplify right side
   76,791.04x = 4,535,768,738.89
5. Step 5: Solve for x
   x = 4,535,768,738.89/76,791.04
6. Step 6: Final answer
   x = 59,066.38