Finding the Fourth Proportional to 12,948,275.93, 17,868,621.83 and 7,147,059.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,275.93 : 17,868,621.83 = 7,147,059.17 : x
2. Step 2: Convert to fraction form
   12,948,275.93/17,868,621.83 = 7,147,059.17/x
3. Step 3: Cross multiply
   12,948,275.93x = 17,868,621.83 × 7,147,059.17
4. Step 4: Simplify right side
   12,948,275.93x = 127,708,097,380,285.27
5. Step 5: Solve for x
   x = 127,708,097,380,285.27/12,948,275.93
6. Step 6: Final answer
   x = 9,862,942.23