Finding the Fourth Proportional to 52,449.57, 72,389.77 and 30,938.00

Step by Step Solution

1. Step 1: Write the proportion equation
   52,449.57 : 72,389.77 = 30,938.00 : x
2. Step 2: Convert to fraction form
   52,449.57/72,389.77 = 30,938.00/x
3. Step 3: Cross multiply
   52,449.57x = 72,389.77 × 30,938.00
4. Step 4: Simplify right side
   52,449.57x = 2,239,594,264.97
5. Step 5: Solve for x
   x = 2,239,594,264.97/52,449.57
6. Step 6: Final answer
   x = 42,699.95