Finding the Fourth Proportional to 143,540.47, 215,389.99 and 59,281.03

Step by Step Solution

1. Step 1: Write the proportion equation
   143,540.47 : 215,389.99 = 59,281.03 : x
2. Step 2: Convert to fraction form
   143,540.47/215,389.99 = 59,281.03/x
3. Step 3: Cross multiply
   143,540.47x = 215,389.99 × 59,281.03
4. Step 4: Simplify right side
   143,540.47x = 12,768,540,468.77
5. Step 5: Solve for x
   x = 12,768,540,468.77/143,540.47
6. Step 6: Final answer
   x = 88,954.29