Finding the Fourth Proportional to 52,521.12, 72,443.04 and 31,284

Step by Step Solution

1. Step 1: Write the proportion equation
   52,521.12 : 72,443.04 = 31,284 : x
2. Step 2: Convert to fraction form
   52,521.12/72,443.04 = 31,284/x
3. Step 3: Cross multiply
   52,521.12x = 72,443.04 × 31,284
4. Step 4: Simplify right side
   52,521.12x = 2,266,308,063.36
5. Step 5: Solve for x
   x = 2,266,308,063.36/52,521.12
6. Step 6: Final answer
   x = 43,150.41