Finding the Fourth Proportional to 52,602.28, 72,572.34 and 31,087.48

Step by Step Solution

1. Step 1: Write the proportion equation
   52,602.28 : 72,572.34 = 31,087.48 : x
2. Step 2: Convert to fraction form
   52,602.28/72,572.34 = 31,087.48/x
3. Step 3: Cross multiply
   52,602.28x = 72,572.34 × 31,087.48
4. Step 4: Simplify right side
   52,602.28x = 2,256,091,168.30
5. Step 5: Solve for x
   x = 2,256,091,168.30/52,602.28
6. Step 6: Final answer
   x = 42,889.61