Finding the Fourth Proportional to 65,418.30, 90,272.12 and 37,123.98

Step by Step Solution

1. Step 1: Write the proportion equation
   65,418.30 : 90,272.12 = 37,123.98 : x
2. Step 2: Convert to fraction form
   65,418.30/90,272.12 = 37,123.98/x
3. Step 3: Cross multiply
   65,418.30x = 90,272.12 × 37,123.98
4. Step 4: Simplify right side
   65,418.30x = 3,351,260,191.82
5. Step 5: Solve for x
   x = 3,351,260,191.82/65,418.30
6. Step 6: Final answer
   x = 51,228.18