Finding the Fourth Proportional to 72,988.29, 109,448.42 and 37,918.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72,988.29 : 109,448.42 = 37,918.53 : x
2. Step 2: Convert to fraction form
   72,988.29/109,448.42 = 37,918.53/x
3. Step 3: Cross multiply
   72,988.29x = 109,448.42 × 37,918.53
4. Step 4: Simplify right side
   72,988.29x = 4,150,123,007.63
5. Step 5: Solve for x
   x = 4,150,123,007.63/72,988.29
6. Step 6: Final answer
   x = 56,860.12