Finding the Fourth Proportional to 8,637,869.31, 12,946,839.48 and 3,243,078.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,637,869.31 : 12,946,839.48 = 3,243,078.96 : x
2. Step 2: Convert to fraction form
   8,637,869.31/12,946,839.48 = 3,243,078.96/x
3. Step 3: Cross multiply
   8,637,869.31x = 12,946,839.48 × 3,243,078.96
4. Step 4: Simplify right side
   8,637,869.31x = 41,987,622,716,085.34
5. Step 5: Solve for x
   x = 41,987,622,716,085.34/8,637,869.31
6. Step 6: Final answer
   x = 4,860,877.28