Finding the Fourth Proportional to 147,825.99, 221,773.84 and 47,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,825.99 : 221,773.84 = 47,978.50 : x
2. Step 2: Convert to fraction form
   147,825.99/221,773.84 = 47,978.50/x
3. Step 3: Cross multiply
   147,825.99x = 221,773.84 × 47,978.50
4. Step 4: Simplify right side
   147,825.99x = 10,640,376,480.15
5. Step 5: Solve for x
   x = 10,640,376,480.15/147,825.99
6. Step 6: Final answer
   x = 71,979.07