Finding the Fourth Proportional to 13,111,662.71, 19,664,139.22 and 3,887,478.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111,662.71 : 19,664,139.22 = 3,887,478.23 : x
2. Step 2: Convert to fraction form
   13,111,662.71/19,664,139.22 = 3,887,478.23/x
3. Step 3: Cross multiply
   13,111,662.71x = 19,664,139.22 × 3,887,478.23
4. Step 4: Simplify right side
   13,111,662.71x = 76,443,913,021,399.80
5. Step 5: Solve for x
   x = 76,443,913,021,399.80/13,111,662.71
6. Step 6: Final answer
   x = 5,830,222.66