Finding the Fourth Proportional to 10,456,671.34, 15,691,146 and 4,390,936.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456,671.34 : 15,691,146 = 4,390,936.12 : x
2. Step 2: Convert to fraction form
   10,456,671.34/15,691,146 = 4,390,936.12/x
3. Step 3: Cross multiply
   10,456,671.34x = 15,691,146 × 4,390,936.12
4. Step 4: Simplify right side
   10,456,671.34x = 68,898,819,735,593.52
5. Step 5: Solve for x
   x = 68,898,819,735,593.52/10,456,671.34
6. Step 6: Final answer
   x = 6,588,982.05