Finding the Fourth Proportional to 14,538,830.05, 20,068,722.72 and 12,987,395.99

Step by Step Solution

1. Step 1: Write the proportion equation
   14,538,830.05 : 20,068,722.72 = 12,987,395.99 : x
2. Step 2: Convert to fraction form
   14,538,830.05/20,068,722.72 = 12,987,395.99/x
3. Step 3: Cross multiply
   14,538,830.05x = 20,068,722.72 × 12,987,395.99
4. Step 4: Simplify right side
   14,538,830.05x = 260,640,449,028,321.69
5. Step 5: Solve for x
   x = 260,640,449,028,321.69/14,538,830.05
6. Step 6: Final answer
   x = 17,927,195.52