Finding the Fourth Proportional to 19,868,978.20, 29,778,535.50 and 8,496,053.32

Step by Step Solution

1. Step 1: Write the proportion equation
   19,868,978.20 : 29,778,535.50 = 8,496,053.32 : x
2. Step 2: Convert to fraction form
   19,868,978.20/29,778,535.50 = 8,496,053.32/x
3. Step 3: Cross multiply
   19,868,978.20x = 29,778,535.50 × 8,496,053.32
4. Step 4: Simplify right side
   19,868,978.20x = 253,000,025,399,512.88
5. Step 5: Solve for x
   x = 253,000,025,399,512.88/19,868,978.20
6. Step 6: Final answer
   x = 12,733,419.04