Finding the Fourth Proportional to 13,139,730.72, 19,698,925.68 and 5,469,117.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,139,730.72 : 19,698,925.68 = 5,469,117.17 : x
2. Step 2: Convert to fraction form
   13,139,730.72/19,698,925.68 = 5,469,117.17/x
3. Step 3: Cross multiply
   13,139,730.72x = 19,698,925.68 × 5,469,117.17
4. Step 4: Simplify right side
   13,139,730.72x = 107,735,732,568,547.30
5. Step 5: Solve for x
   x = 107,735,732,568,547.30/13,139,730.72
6. Step 6: Final answer
   x = 8,199,234.43