Finding the Fourth Proportional to 71,409.24, 98,528.04 and 42,738.12

Step by Step Solution

1. Step 1: Write the proportion equation
   71,409.24 : 98,528.04 = 42,738.12 : x
2. Step 2: Convert to fraction form
   71,409.24/98,528.04 = 42,738.12/x
3. Step 3: Cross multiply
   71,409.24x = 98,528.04 × 42,738.12
4. Step 4: Simplify right side
   71,409.24x = 4,210,903,196.88
5. Step 5: Solve for x
   x = 4,210,903,196.88/71,409.24
6. Step 6: Final answer
   x = 58,968.60