Finding the Fourth Proportional to 91,719.06, 137,555.51 and 35,539.89

Step by Step Solution

1. Step 1: Write the proportion equation
   91,719.06 : 137,555.51 = 35,539.89 : x
2. Step 2: Convert to fraction form
   91,719.06/137,555.51 = 35,539.89/x
3. Step 3: Cross multiply
   91,719.06x = 137,555.51 × 35,539.89
4. Step 4: Simplify right side
   91,719.06x = 4,888,707,516.59
5. Step 5: Solve for x
   x = 4,888,707,516.59/91,719.06
6. Step 6: Final answer
   x = 53,300.89