Finding the Fourth Proportional to 147,808.02, 221,744.43 and 47,978.22

Step by Step Solution

1. Step 1: Write the proportion equation
   147,808.02 : 221,744.43 = 47,978.22 : x
2. Step 2: Convert to fraction form
   147,808.02/221,744.43 = 47,978.22/x
3. Step 3: Cross multiply
   147,808.02x = 221,744.43 × 47,978.22
4. Step 4: Simplify right side
   147,808.02x = 10,638,903,046.31
5. Step 5: Solve for x
   x = 10,638,903,046.31/147,808.02
6. Step 6: Final answer
   x = 71,977.85