Finding the Fourth Proportional to 35,451.01, 53,181.89 and 12,071.98

Step by Step Solution

1. Step 1: Write the proportion equation
   35,451.01 : 53,181.89 = 12,071.98 : x
2. Step 2: Convert to fraction form
   35,451.01/53,181.89 = 12,071.98/x
3. Step 3: Cross multiply
   35,451.01x = 53,181.89 × 12,071.98
4. Step 4: Simplify right side
   35,451.01x = 642,010,712.44
5. Step 5: Solve for x
   x = 642,010,712.44/35,451.01
6. Step 6: Final answer
   x = 18,109.80