Finding the Fourth Proportional to 91,488.08, 137,314.12 and 76,588.46

Step by Step Solution

1. Step 1: Write the proportion equation
   91,488.08 : 137,314.12 = 76,588.46 : x
2. Step 2: Convert to fraction form
   91,488.08/137,314.12 = 76,588.46/x
3. Step 3: Cross multiply
   91,488.08x = 137,314.12 × 76,588.46
4. Step 4: Simplify right side
   91,488.08x = 10,516,676,300.48
5. Step 5: Solve for x
   x = 10,516,676,300.48/91,488.08
6. Step 6: Final answer
   x = 114,951.33