Finding the Fourth Proportional to 116,560.01, 160,852.56 and 65,572.77

Step by Step Solution

1. Step 1: Write the proportion equation
   116,560.01 : 160,852.56 = 65,572.77 : x
2. Step 2: Convert to fraction form
   116,560.01/160,852.56 = 65,572.77/x
3. Step 3: Cross multiply
   116,560.01x = 160,852.56 × 65,572.77
4. Step 4: Simplify right side
   116,560.01x = 10,547,547,920.79
5. Step 5: Solve for x
   x = 10,547,547,920.79/116,560.01
6. Step 6: Final answer
   x = 90,490.28