Finding the Fourth Proportional to 9,165,111.12, 12,648,253.68 and 5,090,730.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165,111.12 : 12,648,253.68 = 5,090,730.12 : x
2. Step 2: Convert to fraction form
   9,165,111.12/12,648,253.68 = 5,090,730.12/x
3. Step 3: Cross multiply
   9,165,111.12x = 12,648,253.68 × 5,090,730.12
4. Step 4: Simplify right side
   9,165,111.12x = 64,388,845,974,176.84
5. Step 5: Solve for x
   x = 64,388,845,974,176.84/9,165,111.12
6. Step 6: Final answer
   x = 7,025,429.93