Finding the Fourth Proportional to 147,810.17, 221,737.16 and 54,308.63

Step by Step Solution

1. Step 1: Write the proportion equation
   147,810.17 : 221,737.16 = 54,308.63 : x
2. Step 2: Convert to fraction form
   147,810.17/221,737.16 = 54,308.63/x
3. Step 3: Cross multiply
   147,810.17x = 221,737.16 × 54,308.63
4. Step 4: Simplify right side
   147,810.17x = 12,042,241,379.69
5. Step 5: Solve for x
   x = 12,042,241,379.69/147,810.17
6. Step 6: Final answer
   x = 81,470.99