Finding the Fourth Proportional to 12,482,983.60, 17,499,770 and 12,482,983.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,482,983.60 : 17,499,770 = 12,482,983.60 : x
2. Step 2: Convert to fraction form
   12,482,983.60/17,499,770 = 12,482,983.60/x
3. Step 3: Cross multiply
   12,482,983.60x = 17,499,770 × 12,482,983.60
4. Step 4: Simplify right side
   12,482,983.60x = 218,449,341,913,772
5. Step 5: Solve for x
   x = 218,449,341,913,772/12,482,983.60
6. Step 6: Final answer
   x = 17,499,770