Finding the Fourth Proportional to 118,107.76, 162,988.59 and 64,392.76

Step by Step Solution

1. Step 1: Write the proportion equation
   118,107.76 : 162,988.59 = 64,392.76 : x
2. Step 2: Convert to fraction form
   118,107.76/162,988.59 = 64,392.76/x
3. Step 3: Cross multiply
   118,107.76x = 162,988.59 × 64,392.76
4. Step 4: Simplify right side
   118,107.76x = 10,495,285,158.61
5. Step 5: Solve for x
   x = 10,495,285,158.61/118,107.76
6. Step 6: Final answer
   x = 88,861.94