Finding the Fourth Proportional to 12,492,061.60, 17,503,058 and 12,492,061.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492,061.60 : 17,503,058 = 12,492,061.60 : x
2. Step 2: Convert to fraction form
   12,492,061.60/17,503,058 = 12,492,061.60/x
3. Step 3: Cross multiply
   12,492,061.60x = 17,503,058 × 12,492,061.60
4. Step 4: Simplify right side
   12,492,061.60x = 218,649,278,724,372.78
5. Step 5: Solve for x
   x = 218,649,278,724,372.78/12,492,061.60
6. Step 6: Final answer
   x = 17,503,058