Finding the Fourth Proportional to 143,978.32, 216,033.12 and 73,906.88

Step by Step Solution

1. Step 1: Write the proportion equation
   143,978.32 : 216,033.12 = 73,906.88 : x
2. Step 2: Convert to fraction form
   143,978.32/216,033.12 = 73,906.88/x
3. Step 3: Cross multiply
   143,978.32x = 216,033.12 × 73,906.88
4. Step 4: Simplify right side
   143,978.32x = 15,966,333,875.87
5. Step 5: Solve for x
   x = 15,966,333,875.87/143,978.32
6. Step 6: Final answer
   x = 110,894.01