Finding the Fourth Proportional to 300,003.84, 450,070.56 and 89,658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,003.84 : 450,070.56 = 89,658.72 : x
2. Step 2: Convert to fraction form
   300,003.84/450,070.56 = 89,658.72/x
3. Step 3: Cross multiply
   300,003.84x = 450,070.56 × 89,658.72
4. Step 4: Simplify right side
   300,003.84x = 40,352,750,319.28
5. Step 5: Solve for x
   x = 40,352,750,319.28/300,003.84
6. Step 6: Final answer
   x = 134,507.45