Finding the Fourth Proportional to 52,513.32, 72,470.16 and 28,641.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,513.32 : 72,470.16 = 28,641.36 : x
2. Step 2: Convert to fraction form
   52,513.32/72,470.16 = 28,641.36/x
3. Step 3: Cross multiply
   52,513.32x = 72,470.16 × 28,641.36
4. Step 4: Simplify right side
   52,513.32x = 2,075,643,941.82
5. Step 5: Solve for x
   x = 2,075,643,941.82/52,513.32
6. Step 6: Final answer
   x = 39,526.05