Finding the Fourth Proportional to 11,898,569.21, 16,413,981.39 and 7,771,016.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,898,569.21 : 16,413,981.39 = 7,771,016.16 : x
2. Step 2: Convert to fraction form
   11,898,569.21/16,413,981.39 = 7,771,016.16/x
3. Step 3: Cross multiply
   11,898,569.21x = 16,413,981.39 × 7,771,016.16
4. Step 4: Simplify right side
   11,898,569.21x = 127,553,314,631,629.27
5. Step 5: Solve for x
   x = 127,553,314,631,629.27/11,898,569.21
6. Step 6: Final answer
   x = 10,720,054.86