Finding the Fourth Proportional to 94.37, 130.01 and 72.50

Step by Step Solution

1. Step 1: Write the proportion equation
   94.37 : 130.01 = 72.50 : x
2. Step 2: Convert to fraction form
   94.37/130.01 = 72.50/x
3. Step 3: Cross multiply
   94.37x = 130.01 × 72.50
4. Step 4: Simplify right side
   94.37x = 9,424.71
5. Step 5: Solve for x
   x = 9,424.71/94.37
6. Step 6: Final answer
   x = 99.88