Finding the Fourth Proportional to 52,619.50, 72,619.91 and 28,749.77

Step by Step Solution

1. Step 1: Write the proportion equation
   52,619.50 : 72,619.91 = 28,749.77 : x
2. Step 2: Convert to fraction form
   52,619.50/72,619.91 = 28,749.77/x
3. Step 3: Cross multiply
   52,619.50x = 72,619.91 × 28,749.77
4. Step 4: Simplify right side
   52,619.50x = 2,087,805,566.17
5. Step 5: Solve for x
   x = 2,087,805,566.17/52,619.50
6. Step 6: Final answer
   x = 39,677.41