Finding the Fourth Proportional to 47,061.30, 64,916.05 and 27,928.47

Step by Step Solution

1. Step 1: Write the proportion equation
   47,061.30 : 64,916.05 = 27,928.47 : x
2. Step 2: Convert to fraction form
   47,061.30/64,916.05 = 27,928.47/x
3. Step 3: Cross multiply
   47,061.30x = 64,916.05 × 27,928.47
4. Step 4: Simplify right side
   47,061.30x = 1,813,005,954.94
5. Step 5: Solve for x
   x = 1,813,005,954.94/47,061.30
6. Step 6: Final answer
   x = 38,524.35