Finding the Fourth Proportional to 52,671.36, 78,954.72 and 21,528.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,671.36 : 78,954.72 = 21,528.96 : x
2. Step 2: Convert to fraction form
   52,671.36/78,954.72 = 21,528.96/x
3. Step 3: Cross multiply
   52,671.36x = 78,954.72 × 21,528.96
4. Step 4: Simplify right side
   52,671.36x = 1,699,813,008.69
5. Step 5: Solve for x
   x = 1,699,813,008.69/52,671.36
6. Step 6: Final answer
   x = 32,272.05