Finding the Fourth Proportional to 302,101.08, 453,200.58 and 99,636.72

Step by Step Solution

1. Step 1: Write the proportion equation
   302,101.08 : 453,200.58 = 99,636.72 : x
2. Step 2: Convert to fraction form
   302,101.08/453,200.58 = 99,636.72/x
3. Step 3: Cross multiply
   302,101.08x = 453,200.58 × 99,636.72
4. Step 4: Simplify right side
   302,101.08x = 45,155,419,293.30
5. Step 5: Solve for x
   x = 45,155,419,293.30/302,101.08
6. Step 6: Final answer
   x = 149,471.23