Finding the Fourth Proportional to 52,275.15, 72,145.89 and 31,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,275.15 : 72,145.89 = 31,054.50 : x
2. Step 2: Convert to fraction form
   52,275.15/72,145.89 = 31,054.50/x
3. Step 3: Cross multiply
   52,275.15x = 72,145.89 × 31,054.50
4. Step 4: Simplify right side
   52,275.15x = 2,240,454,541.01
5. Step 5: Solve for x
   x = 2,240,454,541.01/52,275.15
6. Step 6: Final answer
   x = 42,858.88