Finding the Fourth Proportional to 23,101,961.33, 31,880,958.59 and 12,788,856.65

Step by Step Solution

1. Step 1: Write the proportion equation
   23,101,961.33 : 31,880,958.59 = 12,788,856.65 : x
2. Step 2: Convert to fraction form
   23,101,961.33/31,880,958.59 = 12,788,856.65/x
3. Step 3: Cross multiply
   23,101,961.33x = 31,880,958.59 × 12,788,856.65
4. Step 4: Simplify right side
   23,101,961.33x = 407,721,009,287,854.25
5. Step 5: Solve for x
   x = 407,721,009,287,854.25/23,101,961.33
6. Step 6: Final answer
   x = 17,648,761.65