Finding the Fourth Proportional to 76,345.82, 105,357.06 and 42,359.47

Step by Step Solution

1. Step 1: Write the proportion equation
   76,345.82 : 105,357.06 = 42,359.47 : x
2. Step 2: Convert to fraction form
   76,345.82/105,357.06 = 42,359.47/x
3. Step 3: Cross multiply
   76,345.82x = 105,357.06 × 42,359.47
4. Step 4: Simplify right side
   76,345.82x = 4,462,869,222.36
5. Step 5: Solve for x
   x = 4,462,869,222.36/76,345.82
6. Step 6: Final answer
   x = 58,455.97