Finding the Fourth Proportional to 72,709.23, 109,122.17 and 37,658.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,709.23 : 109,122.17 = 37,658.91 : x
2. Step 2: Convert to fraction form
   72,709.23/109,122.17 = 37,658.91/x
3. Step 3: Cross multiply
   72,709.23x = 109,122.17 × 37,658.91
4. Step 4: Simplify right side
   72,709.23x = 4,109,422,073.18
5. Step 5: Solve for x
   x = 4,109,422,073.18/72,709.23
6. Step 6: Final answer
   x = 56,518.58