Finding the Fourth Proportional to 17,518,678.17, 26,116,081.94 and 17,242,591.29

Step by Step Solution

1. Step 1: Write the proportion equation
   17,518,678.17 : 26,116,081.94 = 17,242,591.29 : x
2. Step 2: Convert to fraction form
   17,518,678.17/26,116,081.94 = 17,242,591.29/x
3. Step 3: Cross multiply
   17,518,678.17x = 26,116,081.94 × 17,242,591.29
4. Step 4: Simplify right side
   17,518,678.17x = 450,308,926,987,570.31
5. Step 5: Solve for x
   x = 450,308,926,987,570.31/17,518,678.17
6. Step 6: Final answer
   x = 25,704,503.65