Finding the Fourth Proportional to 12,492,059.10, 17,503,054.50 and 12,492,059.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492,059.10 : 17,503,054.50 = 12,492,059.10 : x
2. Step 2: Convert to fraction form
   12,492,059.10/17,503,054.50 = 12,492,059.10/x
3. Step 3: Cross multiply
   12,492,059.10x = 17,503,054.50 × 12,492,059.10
4. Step 4: Simplify right side
   12,492,059.10x = 218,649,191,244,520.94
5. Step 5: Solve for x
   x = 218,649,191,244,520.94/12,492,059.10
6. Step 6: Final answer
   x = 17,503,054.50