Finding the Fourth Proportional to 118,071.02, 162,938.78 and 64,355.86

Step by Step Solution

1. Step 1: Write the proportion equation
   118,071.02 : 162,938.78 = 64,355.86 : x
2. Step 2: Convert to fraction form
   118,071.02/162,938.78 = 64,355.86/x
3. Step 3: Cross multiply
   118,071.02x = 162,938.78 × 64,355.86
4. Step 4: Simplify right side
   118,071.02x = 10,486,065,314.25
5. Step 5: Solve for x
   x = 10,486,065,314.25/118,071.02
6. Step 6: Final answer
   x = 88,811.51