Finding the Fourth Proportional to 16,488,538.96, 24,693,710.91 and 13,065,820.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,488,538.96 : 24,693,710.91 = 13,065,820.78 : x
2. Step 2: Convert to fraction form
   16,488,538.96/24,693,710.91 = 13,065,820.78/x
3. Step 3: Cross multiply
   16,488,538.96x = 24,693,710.91 × 13,065,820.78
4. Step 4: Simplify right side
   16,488,538.96x = 322,643,601,143,190.69
5. Step 5: Solve for x
   x = 322,643,601,143,190.69/16,488,538.96
6. Step 6: Final answer
   x = 19,567,749.57