Finding the Fourth Proportional to 91,053.18, 125,673.54 and 59,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,053.18 : 125,673.54 = 59,166.72 : x
2. Step 2: Convert to fraction form
   91,053.18/125,673.54 = 59,166.72/x
3. Step 3: Cross multiply
   91,053.18x = 125,673.54 × 59,166.72
4. Step 4: Simplify right side
   91,053.18x = 7,435,691,152.59
5. Step 5: Solve for x
   x = 7,435,691,152.59/91,053.18
6. Step 6: Final answer
   x = 81,663.17