Finding the Fourth Proportional to 162,061.13, 223,656.75 and 89,478.02

Step by Step Solution

1. Step 1: Write the proportion equation
   162,061.13 : 223,656.75 = 89,478.02 : x
2. Step 2: Convert to fraction form
   162,061.13/223,656.75 = 89,478.02/x
3. Step 3: Cross multiply
   162,061.13x = 223,656.75 × 89,478.02
4. Step 4: Simplify right side
   162,061.13x = 20,012,363,149.64
5. Step 5: Solve for x
   x = 20,012,363,149.64/162,061.13
6. Step 6: Final answer
   x = 123,486.51