Finding the Fourth Proportional to 17,681,991.59, 24,387,995.22 and 15,613,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,681,991.59 : 24,387,995.22 = 15,613,357.50 : x
2. Step 2: Convert to fraction form
   17,681,991.59/24,387,995.22 = 15,613,357.50/x
3. Step 3: Cross multiply
   17,681,991.59x = 24,387,995.22 × 15,613,357.50
4. Step 4: Simplify right side
   17,681,991.59x = 380,778,488,078,151.12
5. Step 5: Solve for x
   x = 380,778,488,078,151.12/17,681,991.59
6. Step 6: Final answer
   x = 21,534,818.99