Finding the Fourth Proportional to 100.02, 137.88 and 73.82

Step by Step Solution

1. Step 1: Write the proportion equation
   100.02 : 137.88 = 73.82 : x
2. Step 2: Convert to fraction form
   100.02/137.88 = 73.82/x
3. Step 3: Cross multiply
   100.02x = 137.88 × 73.82
4. Step 4: Simplify right side
   100.02x = 10,177.61
5. Step 5: Solve for x
   x = 10,177.61/100.02
6. Step 6: Final answer
   x = 101.76