Finding the Fourth Proportional to 267,857,103.69, 401,787,009.88 and 83,609,134.91

Step by Step Solution

1. Step 1: Write the proportion equation
   267,857,103.69 : 401,787,009.88 = 83,609,134.91 : x
2. Step 2: Convert to fraction form
   267,857,103.69/401,787,009.88 = 83,609,134.91/x
3. Step 3: Cross multiply
   267,857,103.69x = 401,787,009.88 × 83,609,134.91
4. Step 4: Simplify right side
   267,857,103.69x = 33,593,064,311,715,444
5. Step 5: Solve for x
   x = 33,593,064,311,715,444/267,857,103.69
6. Step 6: Final answer
   x = 125,414,125.10