Finding the Fourth Proportional to 12,979,997.48, 17,917,911.89 and 8,087,636.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,979,997.48 : 17,917,911.89 = 8,087,636.88 : x
2. Step 2: Convert to fraction form
   12,979,997.48/17,917,911.89 = 8,087,636.88/x
3. Step 3: Cross multiply
   12,979,997.48x = 17,917,911.89 × 8,087,636.88
4. Step 4: Simplify right side
   12,979,997.48x = 144,913,565,014,154.50
5. Step 5: Solve for x
   x = 144,913,565,014,154.50/12,979,997.48
6. Step 6: Final answer
   x = 11,164,375.44