Finding the Fourth Proportional to 118,747.31, 163,871.54 and 64,300.07

Step by Step Solution

1. Step 1: Write the proportion equation
   118,747.31 : 163,871.54 = 64,300.07 : x
2. Step 2: Convert to fraction form
   118,747.31/163,871.54 = 64,300.07/x
3. Step 3: Cross multiply
   118,747.31x = 163,871.54 × 64,300.07
4. Step 4: Simplify right side
   118,747.31x = 10,536,951,171.51
5. Step 5: Solve for x
   x = 10,536,951,171.51/118,747.31
6. Step 6: Final answer
   x = 88,734.23