Finding the Fourth Proportional to 76,791.45, 105,973.25 and 42,798.99

Step by Step Solution

1. Step 1: Write the proportion equation
   76,791.45 : 105,973.25 = 42,798.99 : x
2. Step 2: Convert to fraction form
   76,791.45/105,973.25 = 42,798.99/x
3. Step 3: Cross multiply
   76,791.45x = 105,973.25 × 42,798.99
4. Step 4: Simplify right side
   76,791.45x = 4,535,548,067.02
5. Step 5: Solve for x
   x = 4,535,548,067.02/76,791.45
6. Step 6: Final answer
   x = 59,063.19