Finding the Fourth Proportional to 143,145.60, 214,806.15 and 58,946.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,145.60 : 214,806.15 = 58,946.10 : x
2. Step 2: Convert to fraction form
   143,145.60/214,806.15 = 58,946.10/x
3. Step 3: Cross multiply
   143,145.60x = 214,806.15 × 58,946.10
4. Step 4: Simplify right side
   143,145.60x = 12,661,984,798.52
5. Step 5: Solve for x
   x = 12,661,984,798.52/143,145.60
6. Step 6: Final answer
   x = 88,455.28