Finding the Fourth Proportional to 118,415.06, 163,410.86 and 64,698.92

Step by Step Solution

1. Step 1: Write the proportion equation
   118,415.06 : 163,410.86 = 64,698.92 : x
2. Step 2: Convert to fraction form
   118,415.06/163,410.86 = 64,698.92/x
3. Step 3: Cross multiply
   118,415.06x = 163,410.86 × 64,698.92
4. Step 4: Simplify right side
   118,415.06x = 10,572,506,158.27
5. Step 5: Solve for x
   x = 10,572,506,158.27/118,415.06
6. Step 6: Final answer
   x = 89,283.46