Finding the Fourth Proportional to 52,411, 72,326.10 and 28,538.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,411 : 72,326.10 = 28,538.12 : x
2. Step 2: Convert to fraction form
   52,411/72,326.10 = 28,538.12/x
3. Step 3: Cross multiply
   52,411x = 72,326.10 × 28,538.12
4. Step 4: Simplify right side
   52,411x = 2,064,050,920.93
5. Step 5: Solve for x
   x = 2,064,050,920.93/52,411
6. Step 6: Final answer
   x = 39,382.02