Finding the Fourth Proportional to 61,279.32, 91,926.90 and 21,847.80

Step by Step Solution

1. Step 1: Write the proportion equation
   61,279.32 : 91,926.90 = 21,847.80 : x
2. Step 2: Convert to fraction form
   61,279.32/91,926.90 = 21,847.80/x
3. Step 3: Cross multiply
   61,279.32x = 91,926.90 × 21,847.80
4. Step 4: Simplify right side
   61,279.32x = 2,008,400,525.82
5. Step 5: Solve for x
   x = 2,008,400,525.82/61,279.32
6. Step 6: Final answer
   x = 32,774.52