Finding the Fourth Proportional to 99,327.20, 136,980.72 and 73,897.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,327.20 : 136,980.72 = 73,897.25 : x
2. Step 2: Convert to fraction form
   99,327.20/136,980.72 = 73,897.25/x
3. Step 3: Cross multiply
   99,327.20x = 136,980.72 × 73,897.25
4. Step 4: Simplify right side
   99,327.20x = 10,122,497,826.12
5. Step 5: Solve for x
   x = 10,122,497,826.12/99,327.20
6. Step 6: Final answer
   x = 101,910.64