Finding the Fourth Proportional to 89,073.36, 132,941.06 and 77,012.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,073.36 : 132,941.06 = 77,012.16 : x
2. Step 2: Convert to fraction form
   89,073.36/132,941.06 = 77,012.16/x
3. Step 3: Cross multiply
   89,073.36x = 132,941.06 × 77,012.16
4. Step 4: Simplify right side
   89,073.36x = 10,238,077,798.23
5. Step 5: Solve for x
   x = 10,238,077,798.23/89,073.36
6. Step 6: Final answer
   x = 114,939.84