Finding the Fourth Proportional to 101,141.72, 150,943.51 and 89,931.93

Step by Step Solution

1. Step 1: Write the proportion equation
   101,141.72 : 150,943.51 = 89,931.93 : x
2. Step 2: Convert to fraction form
   101,141.72/150,943.51 = 89,931.93/x
3. Step 3: Cross multiply
   101,141.72x = 150,943.51 × 89,931.93
4. Step 4: Simplify right side
   101,141.72x = 13,574,640,420.56
5. Step 5: Solve for x
   x = 13,574,640,420.56/101,141.72
6. Step 6: Final answer
   x = 134,214.06