Finding the Fourth Proportional to 13,256,012.47, 18,293,010.38 and 7,674,494.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,256,012.47 : 18,293,010.38 = 7,674,494.32 : x
2. Step 2: Convert to fraction form
   13,256,012.47/18,293,010.38 = 7,674,494.32/x
3. Step 3: Cross multiply
   13,256,012.47x = 18,293,010.38 × 7,674,494.32
4. Step 4: Simplify right side
   13,256,012.47x = 140,389,604,257,011.03
5. Step 5: Solve for x
   x = 140,389,604,257,011.03/13,256,012.47
6. Step 6: Final answer
   x = 10,590,636.10