Finding the Fourth Proportional to 73,976.98, 102,080.91 and 42,143.98

Step by Step Solution

1. Step 1: Write the proportion equation
   73,976.98 : 102,080.91 = 42,143.98 : x
2. Step 2: Convert to fraction form
   73,976.98/102,080.91 = 42,143.98/x
3. Step 3: Cross multiply
   73,976.98x = 102,080.91 × 42,143.98
4. Step 4: Simplify right side
   73,976.98x = 4,302,095,829.42
5. Step 5: Solve for x
   x = 4,302,095,829.42/73,976.98
6. Step 6: Final answer
   x = 58,154.52