Finding the Fourth Proportional to 35,185.41, 48,552.77 and 21,580.91

Step by Step Solution

1. Step 1: Write the proportion equation
   35,185.41 : 48,552.77 = 21,580.91 : x
2. Step 2: Convert to fraction form
   35,185.41/48,552.77 = 21,580.91/x
3. Step 3: Cross multiply
   35,185.41x = 48,552.77 × 21,580.91
4. Step 4: Simplify right side
   35,185.41x = 1,047,812,694.93
5. Step 5: Solve for x
   x = 1,047,812,694.93/35,185.41
6. Step 6: Final answer
   x = 29,779.75