Finding the Fourth Proportional to 12,068,199,123.98, 18,102,298,685.96 and 12,068,199,123.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,068,199,123.98 : 18,102,298,685.96 = 12,068,199,123.98 : x
2. Step 2: Convert to fraction form
   12,068,199,123.98/18,102,298,685.96 = 12,068,199,123.98/x
3. Step 3: Cross multiply
   12,068,199,123.98x = 18,102,298,685.96 × 12,068,199,123.98
4. Step 4: Simplify right side
   12,068,199,123.98x = 218,462,145,143,872,487,424
5. Step 5: Solve for x
   x = 218,462,145,143,872,487,424/12,068,199,123.98
6. Step 6: Final answer
   x = 18,102,298,685.96