Finding the Fourth Proportional to 8,336,448.89, 12,518,983.62 and 5,116,892.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,336,448.89 : 12,518,983.62 = 5,116,892.12 : x
2. Step 2: Convert to fraction form
   8,336,448.89/12,518,983.62 = 5,116,892.12/x
3. Step 3: Cross multiply
   8,336,448.89x = 12,518,983.62 × 5,116,892.12
4. Step 4: Simplify right side
   8,336,448.89x = 64,058,288,610,002.62
5. Step 5: Solve for x
   x = 64,058,288,610,002.62/8,336,448.89
6. Step 6: Final answer
   x = 7,684,121.80