Finding the Fourth Proportional to 8,378,805,730.79, 12,569,499,997.86 and 2,856,772,360.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,378,805,730.79 : 12,569,499,997.86 = 2,856,772,360.91 : x
2. Step 2: Convert to fraction form
   8,378,805,730.79/12,569,499,997.86 = 2,856,772,360.91/x
3. Step 3: Cross multiply
   8,378,805,730.79x = 12,569,499,997.86 × 2,856,772,360.91
4. Step 4: Simplify right side
   8,378,805,730.79x = 35,908,200,184,344,752,128
5. Step 5: Solve for x
   x = 35,908,200,184,344,752,128/8,378,805,730.79
6. Step 6: Final answer
   x = 4,285,598,847.62