Finding the Fourth Proportional to 93,590.76, 128,829.78 and 81,633.27

Step by Step Solution

1. Step 1: Write the proportion equation
   93,590.76 : 128,829.78 = 81,633.27 : x
2. Step 2: Convert to fraction form
   93,590.76/128,829.78 = 81,633.27/x
3. Step 3: Cross multiply
   93,590.76x = 128,829.78 × 81,633.27
4. Step 4: Simplify right side
   93,590.76x = 10,516,796,214.78
5. Step 5: Solve for x
   x = 10,516,796,214.78/93,590.76
6. Step 6: Final answer
   x = 112,370.03