Finding the Fourth Proportional to 52,602.32, 72,588.38 and 28,724.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,602.32 : 72,588.38 = 28,724.34 : x
2. Step 2: Convert to fraction form
   52,602.32/72,588.38 = 28,724.34/x
3. Step 3: Cross multiply
   52,602.32x = 72,588.38 × 28,724.34
4. Step 4: Simplify right side
   52,602.32x = 2,085,053,307.17
5. Step 5: Solve for x
   x = 2,085,053,307.17/52,602.32
6. Step 6: Final answer
   x = 39,638.05