Finding the Fourth Proportional to 52,180.38, 72,009.06 and 28,307.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,180.38 : 72,009.06 = 28,307.05 : x
2. Step 2: Convert to fraction form
   52,180.38/72,009.06 = 28,307.05/x
3. Step 3: Cross multiply
   52,180.38x = 72,009.06 × 28,307.05
4. Step 4: Simplify right side
   52,180.38x = 2,038,364,061.87
5. Step 5: Solve for x
   x = 2,038,364,061.87/52,180.38
6. Step 6: Final answer
   x = 39,063.81