Finding the Fourth Proportional to 21,546,113.80, 32,336,796.30 and 21,378,152.20

Step by Step Solution

1. Step 1: Write the proportion equation
   21,546,113.80 : 32,336,796.30 = 21,378,152.20 : x
2. Step 2: Convert to fraction form
   21,546,113.80/32,336,796.30 = 21,378,152.20/x
3. Step 3: Cross multiply
   21,546,113.80x = 32,336,796.30 × 21,378,152.20
4. Step 4: Simplify right side
   21,546,113.80x = 691,300,952,961,796.88
5. Step 5: Solve for x
   x = 691,300,952,961,796.88/21,546,113.80
6. Step 6: Final answer
   x = 32,084,716.50