Finding the Fourth Proportional to 72,046, 99,435 and 42,238

Step by Step Solution

1. Step 1: Write the proportion equation
   72,046 : 99,435 = 42,238 : x
2. Step 2: Convert to fraction form
   72,046/99,435 = 42,238/x
3. Step 3: Cross multiply
   72,046x = 99,435 × 42,238
4. Step 4: Simplify right side
   72,046x = 4,199,935,530
5. Step 5: Solve for x
   x = 4,199,935,530/72,046
6. Step 6: Final answer
   x = 58,295.19