Finding the Fourth Proportional to 200,648,891.15, 300,901,130.42 and 69,455,520.61

Step by Step Solution

1. Step 1: Write the proportion equation
   200,648,891.15 : 300,901,130.42 = 69,455,520.61 : x
2. Step 2: Convert to fraction form
   200,648,891.15/300,901,130.42 = 69,455,520.61/x
3. Step 3: Cross multiply
   200,648,891.15x = 300,901,130.42 × 69,455,520.61
4. Step 4: Simplify right side
   200,648,891.15x = 20,899,244,666,442,680
5. Step 5: Solve for x
   x = 20,899,244,666,442,680/200,648,891.15
6. Step 6: Final answer
   x = 104,158,286.38