Finding the Fourth Proportional to 287,061.88, 430,636.56 and 146,773.12

Step by Step Solution

1. Step 1: Write the proportion equation
   287,061.88 : 430,636.56 = 146,773.12 : x
2. Step 2: Convert to fraction form
   287,061.88/430,636.56 = 146,773.12/x
3. Step 3: Cross multiply
   287,061.88x = 430,636.56 × 146,773.12
4. Step 4: Simplify right side
   287,061.88x = 63,205,871,497.27
5. Step 5: Solve for x
   x = 63,205,871,497.27/287,061.88
6. Step 6: Final answer
   x = 220,182.04