Finding the Fourth Proportional to 21,559,780.32, 32,303,131.18 and 13,022,180.66

Step by Step Solution

1. Step 1: Write the proportion equation
   21,559,780.32 : 32,303,131.18 = 13,022,180.66 : x
2. Step 2: Convert to fraction form
   21,559,780.32/32,303,131.18 = 13,022,180.66/x
3. Step 3: Cross multiply
   21,559,780.32x = 32,303,131.18 × 13,022,180.66
4. Step 4: Simplify right side
   21,559,780.32x = 420,657,209,948,123.31
5. Step 5: Solve for x
   x = 420,657,209,948,123.31/21,559,780.32
6. Step 6: Final answer
   x = 19,511,201.12