Finding the Fourth Proportional to 102,200.99, 153,257.72 and 35,621.42

Step by Step Solution

1. Step 1: Write the proportion equation
   102,200.99 : 153,257.72 = 35,621.42 : x
2. Step 2: Convert to fraction form
   102,200.99/153,257.72 = 35,621.42/x
3. Step 3: Cross multiply
   102,200.99x = 153,257.72 × 35,621.42
4. Step 4: Simplify right side
   102,200.99x = 5,459,256,667.97
5. Step 5: Solve for x
   x = 5,459,256,667.97/102,200.99
6. Step 6: Final answer
   x = 53,416.87