Finding the Fourth Proportional to 52,474.32, 72,415.71 and 28,602.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,474.32 : 72,415.71 = 28,602.18 : x
2. Step 2: Convert to fraction form
   52,474.32/72,415.71 = 28,602.18/x
3. Step 3: Cross multiply
   52,474.32x = 72,415.71 × 28,602.18
4. Step 4: Simplify right side
   52,474.32x = 2,071,247,172.25
5. Step 5: Solve for x
   x = 2,071,247,172.25/52,474.32
6. Step 6: Final answer
   x = 39,471.63