Finding the Fourth Proportional to 101,111.37, 151,661.57 and 30,990.87

Step by Step Solution

1. Step 1: Write the proportion equation
   101,111.37 : 151,661.57 = 30,990.87 : x
2. Step 2: Convert to fraction form
   101,111.37/151,661.57 = 30,990.87/x
3. Step 3: Cross multiply
   101,111.37x = 151,661.57 × 30,990.87
4. Step 4: Simplify right side
   101,111.37x = 4,700,123,844.91
5. Step 5: Solve for x
   x = 4,700,123,844.91/101,111.37
6. Step 6: Final answer
   x = 46,484.62