Finding the Fourth Proportional to 112,111.28, 167,937.15 and 89,803.88

Step by Step Solution

1. Step 1: Write the proportion equation
   112,111.28 : 167,937.15 = 89,803.88 : x
2. Step 2: Convert to fraction form
   112,111.28/167,937.15 = 89,803.88/x
3. Step 3: Cross multiply
   112,111.28x = 167,937.15 × 89,803.88
4. Step 4: Simplify right side
   112,111.28x = 15,081,407,666.14
5. Step 5: Solve for x
   x = 15,081,407,666.14/112,111.28
6. Step 6: Final answer
   x = 134,521.77