Finding the Fourth Proportional to 12,805,731.37, 17,672,048.27 and 7,004,385.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,805,731.37 : 17,672,048.27 = 7,004,385.55 : x
2. Step 2: Convert to fraction form
   12,805,731.37/17,672,048.27 = 7,004,385.55/x
3. Step 3: Cross multiply
   12,805,731.37x = 17,672,048.27 × 7,004,385.55
4. Step 4: Simplify right side
   12,805,731.37x = 123,781,839,541,290.48
5. Step 5: Solve for x
   x = 123,781,839,541,290.48/12,805,731.37
6. Step 6: Final answer
   x = 9,666,128.08