Finding the Fourth Proportional to 68,634,103.72, 102,951,072.98 and 17,516,128

Step by Step Solution

1. Step 1: Write the proportion equation
   68,634,103.72 : 102,951,072.98 = 17,516,128 : x
2. Step 2: Convert to fraction form
   68,634,103.72/102,951,072.98 = 17,516,128/x
3. Step 3: Cross multiply
   68,634,103.72x = 102,951,072.98 × 17,516,128
4. Step 4: Simplify right side
   68,634,103.72x = 1,803,304,172,055,021.50
5. Step 5: Solve for x
   x = 1,803,304,172,055,021.50/68,634,103.72
6. Step 6: Final answer
   x = 26,274,170.92