Finding the Fourth Proportional to 117,897.98, 162,651.12 and 72,562.28

Step by Step Solution

1. Step 1: Write the proportion equation
   117,897.98 : 162,651.12 = 72,562.28 : x
2. Step 2: Convert to fraction form
   117,897.98/162,651.12 = 72,562.28/x
3. Step 3: Cross multiply
   117,897.98x = 162,651.12 × 72,562.28
4. Step 4: Simplify right side
   117,897.98x = 11,802,336,111.75
5. Step 5: Solve for x
   x = 11,802,336,111.75/117,897.98
6. Step 6: Final answer
   x = 100,106.35