Finding the Fourth Proportional to 143,290.62, 214,899.08 and 59,074.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,290.62 : 214,899.08 = 59,074.72 : x
2. Step 2: Convert to fraction form
   143,290.62/214,899.08 = 59,074.72/x
3. Step 3: Cross multiply
   143,290.62x = 214,899.08 × 59,074.72
4. Step 4: Simplify right side
   143,290.62x = 12,695,102,146.64
5. Step 5: Solve for x
   x = 12,695,102,146.64/143,290.62
6. Step 6: Final answer
   x = 88,596.88