Finding the Fourth Proportional to 91,594.48, 137,195.60 and 69,160.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,594.48 : 137,195.60 = 69,160.72 : x
2. Step 2: Convert to fraction form
   91,594.48/137,195.60 = 69,160.72/x
3. Step 3: Cross multiply
   91,594.48x = 137,195.60 × 69,160.72
4. Step 4: Simplify right side
   91,594.48x = 9,488,546,476.83
5. Step 5: Solve for x
   x = 9,488,546,476.83/91,594.48
6. Step 6: Final answer
   x = 103,592.99