Finding the Fourth Proportional to 118,533.84, 163,576.86 and 64,818.69

Step by Step Solution

1. Step 1: Write the proportion equation
   118,533.84 : 163,576.86 = 64,818.69 : x
2. Step 2: Convert to fraction form
   118,533.84/163,576.86 = 64,818.69/x
3. Step 3: Cross multiply
   118,533.84x = 163,576.86 × 64,818.69
4. Step 4: Simplify right side
   118,533.84x = 10,602,837,779.51
5. Step 5: Solve for x
   x = 10,602,837,779.51/118,533.84
6. Step 6: Final answer
   x = 89,449.88