Finding the Fourth Proportional to 12,915,501.84, 19,373,279.42 and 12,126,311.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,915,501.84 : 19,373,279.42 = 12,126,311.96 : x
2. Step 2: Convert to fraction form
   12,915,501.84/19,373,279.42 = 12,126,311.96/x
3. Step 3: Cross multiply
   12,915,501.84x = 19,373,279.42 × 12,126,311.96
4. Step 4: Simplify right side
   12,915,501.84x = 234,926,429,935,167.91
5. Step 5: Solve for x
   x = 234,926,429,935,167.91/12,915,501.84
6. Step 6: Final answer
   x = 18,189,492.97