Finding the Fourth Proportional to 147,820.28, 221,592.18 and 54,300.92

Step by Step Solution

1. Step 1: Write the proportion equation
   147,820.28 : 221,592.18 = 54,300.92 : x
2. Step 2: Convert to fraction form
   147,820.28/221,592.18 = 54,300.92/x
3. Step 3: Cross multiply
   147,820.28x = 221,592.18 × 54,300.92
4. Step 4: Simplify right side
   147,820.28x = 12,032,659,238.81
5. Step 5: Solve for x
   x = 12,032,659,238.81/147,820.28
6. Step 6: Final answer
   x = 81,400.60