Finding the Fourth Proportional to 142,014.63, 213,051.11 and 57,774.59

Step by Step Solution

1. Step 1: Write the proportion equation
   142,014.63 : 213,051.11 = 57,774.59 : x
2. Step 2: Convert to fraction form
   142,014.63/213,051.11 = 57,774.59/x
3. Step 3: Cross multiply
   142,014.63x = 213,051.11 × 57,774.59
4. Step 4: Simplify right side
   142,014.63x = 12,308,939,175.17
5. Step 5: Solve for x
   x = 12,308,939,175.17/142,014.63
6. Step 6: Final answer
   x = 86,673.74