Finding the Fourth Proportional to 76,007.79, 104,890.50 and 42,473.79

Step by Step Solution

1. Step 1: Write the proportion equation
   76,007.79 : 104,890.50 = 42,473.79 : x
2. Step 2: Convert to fraction form
   76,007.79/104,890.50 = 42,473.79/x
3. Step 3: Cross multiply
   76,007.79x = 104,890.50 × 42,473.79
4. Step 4: Simplify right side
   76,007.79x = 4,455,097,070.00
5. Step 5: Solve for x
   x = 4,455,097,070.00/76,007.79
6. Step 6: Final answer
   x = 58,613.69