Finding the Fourth Proportional to 17,681,992.78, 24,387,996.86 and 15,613,358.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681,992.78 : 24,387,996.86 = 15,613,358.69 : x
2. Step 2: Convert to fraction form
   17,681,992.78/24,387,996.86 = 15,613,358.69/x
3. Step 3: Cross multiply
   17,681,992.78x = 24,387,996.86 × 15,613,358.69
4. Step 4: Simplify right side
   17,681,992.78x = 380,778,542,705,773.69
5. Step 5: Solve for x
   x = 380,778,542,705,773.69/17,681,992.78
6. Step 6: Final answer
   x = 21,534,820.62