Finding the Fourth Proportional to 115,101.60, 158,864.72 and 77,353.98

Step by Step Solution

1. Step 1: Write the proportion equation
   115,101.60 : 158,864.72 = 77,353.98 : x
2. Step 2: Convert to fraction form
   115,101.60/158,864.72 = 77,353.98/x
3. Step 3: Cross multiply
   115,101.60x = 158,864.72 × 77,353.98
4. Step 4: Simplify right side
   115,101.60x = 12,288,818,373.59
5. Step 5: Solve for x
   x = 12,288,818,373.59/115,101.60
6. Step 6: Final answer
   x = 106,764.97