Finding the Fourth Proportional to 72,932.80, 109,436.64 and 37,900.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,932.80 : 109,436.64 = 37,900.48 : x
2. Step 2: Convert to fraction form
   72,932.80/109,436.64 = 37,900.48/x
3. Step 3: Cross multiply
   72,932.80x = 109,436.64 × 37,900.48
4. Step 4: Simplify right side
   72,932.80x = 4,147,701,185.59
5. Step 5: Solve for x
   x = 4,147,701,185.59/72,932.80
6. Step 6: Final answer
   x = 56,870.18