Finding the Fourth Proportional to 12,948,126.05, 17,868,415.37 and 7,146,909.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,126.05 : 17,868,415.37 = 7,146,909.42 : x
2. Step 2: Convert to fraction form
   12,948,126.05/17,868,415.37 = 7,146,909.42/x
3. Step 3: Cross multiply
   12,948,126.05x = 17,868,415.37 × 7,146,909.42
4. Step 4: Simplify right side
   12,948,126.05x = 127,703,946,092,591.22
5. Step 5: Solve for x
   x = 127,703,946,092,591.22/12,948,126.05
6. Step 6: Final answer
   x = 9,862,735.78