Finding the Fourth Proportional to 12,807,799.08, 17,674,902.12 and 7,006,456.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807,799.08 : 17,674,902.12 = 7,006,456.20 : x
2. Step 2: Convert to fraction form
   12,807,799.08/17,674,902.12 = 7,006,456.20/x
3. Step 3: Cross multiply
   12,807,799.08x = 17,674,902.12 × 7,006,456.20
4. Step 4: Simplify right side
   12,807,799.08x = 123,838,427,543,067.16
5. Step 5: Solve for x
   x = 123,838,427,543,067.16/12,807,799.08
6. Step 6: Final answer
   x = 9,668,985.81