Finding the Fourth Proportional to 93,915.05, 129,590.15 and 58,105.76

Step by Step Solution

1. Step 1: Write the proportion equation
   93,915.05 : 129,590.15 = 58,105.76 : x
2. Step 2: Convert to fraction form
   93,915.05/129,590.15 = 58,105.76/x
3. Step 3: Cross multiply
   93,915.05x = 129,590.15 × 58,105.76
4. Step 4: Simplify right side
   93,915.05x = 7,529,933,215.78
5. Step 5: Solve for x
   x = 7,529,933,215.78/93,915.05
6. Step 6: Final answer
   x = 80,178.14