Finding the Fourth Proportional to 22,116,897.79, 30,520,798.78 and 12,826,128.13

Step by Step Solution

1. Step 1: Write the proportion equation
   22,116,897.79 : 30,520,798.78 = 12,826,128.13 : x
2. Step 2: Convert to fraction form
   22,116,897.79/30,520,798.78 = 12,826,128.13/x
3. Step 3: Cross multiply
   22,116,897.79x = 30,520,798.78 × 12,826,128.13
4. Step 4: Simplify right side
   22,116,897.79x = 391,463,675,782,227.75
5. Step 5: Solve for x
   x = 391,463,675,782,227.75/22,116,897.79
6. Step 6: Final answer
   x = 17,699,755.16