Finding the Fourth Proportional to 52,840.50, 72,920.07 and 30,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,840.50 : 72,920.07 = 30,484.50 : x
2. Step 2: Convert to fraction form
   52,840.50/72,920.07 = 30,484.50/x
3. Step 3: Cross multiply
   52,840.50x = 72,920.07 × 30,484.50
4. Step 4: Simplify right side
   52,840.50x = 2,222,931,873.92
5. Step 5: Solve for x
   x = 2,222,931,873.92/52,840.50
6. Step 6: Final answer
   x = 42,068.71