Finding the Fourth Proportional to 118,206.07, 163,123.83 and 64,490.92

Step by Step Solution

1. Step 1: Write the proportion equation
   118,206.07 : 163,123.83 = 64,490.92 : x
2. Step 2: Convert to fraction form
   118,206.07/163,123.83 = 64,490.92/x
3. Step 3: Cross multiply
   118,206.07x = 163,123.83 × 64,490.92
4. Step 4: Simplify right side
   118,206.07x = 10,520,005,462.81
5. Step 5: Solve for x
   x = 10,520,005,462.81/118,206.07
6. Step 6: Final answer
   x = 88,997.17