Finding the Fourth Proportional to 78,074.00, 117,111.27 and 18,909.71

Step by Step Solution

1. Step 1: Write the proportion equation
   78,074.00 : 117,111.27 = 18,909.71 : x
2. Step 2: Convert to fraction form
   78,074.00/117,111.27 = 18,909.71/x
3. Step 3: Cross multiply
   78,074.00x = 117,111.27 × 18,909.71
4. Step 4: Simplify right side
   78,074.00x = 2,214,539,567.88
5. Step 5: Solve for x
   x = 2,214,539,567.88/78,074.00
6. Step 6: Final answer
   x = 28,364.62