Finding the Fourth Proportional to 10,865,870.18, 16,283,665.56 and 8,167,046.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,865,870.18 : 16,283,665.56 = 8,167,046.60 : x
2. Step 2: Convert to fraction form
   10,865,870.18/16,283,665.56 = 8,167,046.60/x
3. Step 3: Cross multiply
   10,865,870.18x = 16,283,665.56 × 8,167,046.60
4. Step 4: Simplify right side
   10,865,870.18x = 132,989,455,447,335.09
5. Step 5: Solve for x
   x = 132,989,455,447,335.09/10,865,870.18
6. Step 6: Final answer
   x = 12,239,190.53