Finding the Fourth Proportional to 89,642.69, 134,380.51 and 30,437.87

Step by Step Solution

1. Step 1: Write the proportion equation
   89,642.69 : 134,380.51 = 30,437.87 : x
2. Step 2: Convert to fraction form
   89,642.69/134,380.51 = 30,437.87/x
3. Step 3: Cross multiply
   89,642.69x = 134,380.51 × 30,437.87
4. Step 4: Simplify right side
   89,642.69x = 4,090,255,669.82
5. Step 5: Solve for x
   x = 4,090,255,669.82/89,642.69
6. Step 6: Final answer
   x = 45,628.44