Finding the Fourth Proportional to 22,156,988.50, 30,577,700.37 and 12,499,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156,988.50 : 30,577,700.37 = 12,499,196.50 : x
2. Step 2: Convert to fraction form
   22,156,988.50/30,577,700.37 = 12,499,196.50/x
3. Step 3: Cross multiply
   22,156,988.50x = 30,577,700.37 × 12,499,196.50
4. Step 4: Simplify right side
   22,156,988.50x = 382,196,685,442,752.69
5. Step 5: Solve for x
   x = 382,196,685,442,752.69/22,156,988.50
6. Step 6: Final answer
   x = 17,249,487.02