Finding the Fourth Proportional to 91,434.79, 137,152.23 and 60,043.15

Step by Step Solution

1. Step 1: Write the proportion equation
   91,434.79 : 137,152.23 = 60,043.15 : x
2. Step 2: Convert to fraction form
   91,434.79/137,152.23 = 60,043.15/x
3. Step 3: Cross multiply
   91,434.79x = 137,152.23 × 60,043.15
4. Step 4: Simplify right side
   91,434.79x = 8,235,051,918.72
5. Step 5: Solve for x
   x = 8,235,051,918.72/91,434.79
6. Step 6: Final answer
   x = 90,064.75