Finding the Fourth Proportional to 52,431.30, 78,591.57 and 37,632.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,431.30 : 78,591.57 = 37,632.20 : x
2. Step 2: Convert to fraction form
   52,431.30/78,591.57 = 37,632.20/x
3. Step 3: Cross multiply
   52,431.30x = 78,591.57 × 37,632.20
4. Step 4: Simplify right side
   52,431.30x = 2,957,573,146.48
5. Step 5: Solve for x
   x = 2,957,573,146.48/52,431.30
6. Step 6: Final answer
   x = 56,408.54