Finding the Fourth Proportional to 73,951.68, 102,041.52 and 42,121.20

Step by Step Solution

1. Step 1: Write the proportion equation
   73,951.68 : 102,041.52 = 42,121.20 : x
2. Step 2: Convert to fraction form
   73,951.68/102,041.52 = 42,121.20/x
3. Step 3: Cross multiply
   73,951.68x = 102,041.52 × 42,121.20
4. Step 4: Simplify right side
   73,951.68x = 4,298,111,272.22
5. Step 5: Solve for x
   x = 4,298,111,272.22/73,951.68
6. Step 6: Final answer
   x = 58,120.54