Finding the Fourth Proportional to 118,250.34, 163,185.93 and 64,536.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,250.34 : 163,185.93 = 64,536.56 : x
2. Step 2: Convert to fraction form
   118,250.34/163,185.93 = 64,536.56/x
3. Step 3: Cross multiply
   118,250.34x = 163,185.93 × 64,536.56
4. Step 4: Simplify right side
   118,250.34x = 10,531,458,970.57
5. Step 5: Solve for x
   x = 10,531,458,970.57/118,250.34
6. Step 6: Final answer
   x = 89,060.71