Finding the Fourth Proportional to 100,978.09, 151,470.98 and 37,791.56

Step by Step Solution

1. Step 1: Write the proportion equation
   100,978.09 : 151,470.98 = 37,791.56 : x
2. Step 2: Convert to fraction form
   100,978.09/151,470.98 = 37,791.56/x
3. Step 3: Cross multiply
   100,978.09x = 151,470.98 × 37,791.56
4. Step 4: Simplify right side
   100,978.09x = 5,724,324,628.93
5. Step 5: Solve for x
   x = 5,724,324,628.93/100,978.09
6. Step 6: Final answer
   x = 56,688.78