Finding the Fourth Proportional to 22,526,498.23, 31,087,179.67 and 12,738,406.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,526,498.23 : 31,087,179.67 = 12,738,406.79 : x
2. Step 2: Convert to fraction form
   22,526,498.23/31,087,179.67 = 12,738,406.79/x
3. Step 3: Cross multiply
   22,526,498.23x = 31,087,179.67 × 12,738,406.79
4. Step 4: Simplify right side
   22,526,498.23x = 396,001,140,590,277.94
5. Step 5: Solve for x
   x = 396,001,140,590,277.94/22,526,498.23
6. Step 6: Final answer
   x = 17,579,347.51