Finding the Fourth Proportional to 12,108,619,588.32, 18,172,199,872.49 and 5,480,903,122.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108,619,588.32 : 18,172,199,872.49 = 5,480,903,122.16 : x
2. Step 2: Convert to fraction form
   12,108,619,588.32/18,172,199,872.49 = 5,480,903,122.16/x
3. Step 3: Cross multiply
   12,108,619,588.32x = 18,172,199,872.49 × 5,480,903,122.16
4. Step 4: Simplify right side
   12,108,619,588.32x = 99,600,067,017,527,721,984
5. Step 5: Solve for x
   x = 99,600,067,017,527,721,984/12,108,619,588.32
6. Step 6: Final answer
   x = 8,225,550,921.89