Finding the Fourth Proportional to 143,254.22, 214,807.50 and 64,300.77

Step by Step Solution

1. Step 1: Write the proportion equation
   143,254.22 : 214,807.50 = 64,300.77 : x
2. Step 2: Convert to fraction form
   143,254.22/214,807.50 = 64,300.77/x
3. Step 3: Cross multiply
   143,254.22x = 214,807.50 × 64,300.77
4. Step 4: Simplify right side
   143,254.22x = 13,812,287,651.78
5. Step 5: Solve for x
   x = 13,812,287,651.78/143,254.22
6. Step 6: Final answer
   x = 96,418.02