Finding the Fourth Proportional to 72,345.17, 108,548.73 and 37,309.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,345.17 : 108,548.73 = 37,309.43 : x
2. Step 2: Convert to fraction form
   72,345.17/108,548.73 = 37,309.43/x
3. Step 3: Cross multiply
   72,345.17x = 108,548.73 × 37,309.43
4. Step 4: Simplify right side
   72,345.17x = 4,049,890,700.78
5. Step 5: Solve for x
   x = 4,049,890,700.78/72,345.17
6. Step 6: Final answer
   x = 55,980.12