Finding the Fourth Proportional to 10,892,139.30, 16,302,779.55 and 8,482,940.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892,139.30 : 16,302,779.55 = 8,482,940.10 : x
2. Step 2: Convert to fraction form
   10,892,139.30/16,302,779.55 = 8,482,940.10/x
3. Step 3: Cross multiply
   10,892,139.30x = 16,302,779.55 × 8,482,940.10
4. Step 4: Simplify right side
   10,892,139.30x = 138,295,502,386,154.95
5. Step 5: Solve for x
   x = 138,295,502,386,154.95/10,892,139.30
6. Step 6: Final answer
   x = 12,696,817.27