Finding the Fourth Proportional to 72,814.47, 109,264.17 and 30,691.98

Step by Step Solution

1. Step 1: Write the proportion equation
   72,814.47 : 109,264.17 = 30,691.98 : x
2. Step 2: Convert to fraction form
   72,814.47/109,264.17 = 30,691.98/x
3. Step 3: Cross multiply
   72,814.47x = 109,264.17 × 30,691.98
4. Step 4: Simplify right side
   72,814.47x = 3,353,533,720.36
5. Step 5: Solve for x
   x = 3,353,533,720.36/72,814.47
6. Step 6: Final answer
   x = 46,055.87