Finding the Fourth Proportional to 147,874.17, 221,722.43 and 57,809.60

Step by Step Solution

1. Step 1: Write the proportion equation
   147,874.17 : 221,722.43 = 57,809.60 : x
2. Step 2: Convert to fraction form
   147,874.17/221,722.43 = 57,809.60/x
3. Step 3: Cross multiply
   147,874.17x = 221,722.43 × 57,809.60
4. Step 4: Simplify right side
   147,874.17x = 12,817,685,254.59
5. Step 5: Solve for x
   x = 12,817,685,254.59/147,874.17
6. Step 6: Final answer
   x = 86,679.68