Finding the Fourth Proportional to 12,562,671.06, 17,336,642.85 and 7,405,724.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,562,671.06 : 17,336,642.85 = 7,405,724.34 : x
2. Step 2: Convert to fraction form
   12,562,671.06/17,336,642.85 = 7,405,724.34/x
3. Step 3: Cross multiply
   12,562,671.06x = 17,336,642.85 × 7,405,724.34
4. Step 4: Simplify right side
   12,562,671.06x = 128,390,397,928,131.98
5. Step 5: Solve for x
   x = 128,390,397,928,131.98/12,562,671.06
6. Step 6: Final answer
   x = 10,219,992.02