Finding the Fourth Proportional to 52,809.40, 72,870.06 and 31,580.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,809.40 : 72,870.06 = 31,580.92 : x
2. Step 2: Convert to fraction form
   52,809.40/72,870.06 = 31,580.92/x
3. Step 3: Cross multiply
   52,809.40x = 72,870.06 × 31,580.92
4. Step 4: Simplify right side
   52,809.40x = 2,301,303,535.26
5. Step 5: Solve for x
   x = 2,301,303,535.26/52,809.40
6. Step 6: Final answer
   x = 43,577.54