Finding the Fourth Proportional to 118,152.06, 163,053.80 and 64,440.01

Step by Step Solution

1. Step 1: Write the proportion equation
   118,152.06 : 163,053.80 = 64,440.01 : x
2. Step 2: Convert to fraction form
   118,152.06/163,053.80 = 64,440.01/x
3. Step 3: Cross multiply
   118,152.06x = 163,053.80 × 64,440.01
4. Step 4: Simplify right side
   118,152.06x = 10,507,188,502.54
5. Step 5: Solve for x
   x = 10,507,188,502.54/118,152.06
6. Step 6: Final answer
   x = 88,929.37