Finding the Fourth Proportional to 43,111,404.20, 64,668,022.42 and 15,447,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   43,111,404.20 : 64,668,022.42 = 15,447,123.20 : x
2. Step 2: Convert to fraction form
   43,111,404.20/64,668,022.42 = 15,447,123.20/x
3. Step 3: Cross multiply
   43,111,404.20x = 64,668,022.42 × 15,447,123.20
4. Step 4: Simplify right side
   43,111,404.20x = 998,934,909,422,102.12
5. Step 5: Solve for x
   x = 998,934,909,422,102.12/43,111,404.20
6. Step 6: Final answer
   x = 23,171,013.05