Finding the Fourth Proportional to 23,107,006.61, 31,888,665.33 and 12,793,729.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,107,006.61 : 31,888,665.33 = 12,793,729.40 : x
2. Step 2: Convert to fraction form
   23,107,006.61/31,888,665.33 = 12,793,729.40/x
3. Step 3: Cross multiply
   23,107,006.61x = 31,888,665.33 × 12,793,729.40
4. Step 4: Simplify right side
   23,107,006.61x = 407,974,955,159,181.69
5. Step 5: Solve for x
   x = 407,974,955,159,181.69/23,107,006.61
6. Step 6: Final answer
   x = 17,655,898.15