Finding the Fourth Proportional to 118,022.77, 162,871.43 and 64,307.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,022.77 : 162,871.43 = 64,307.78 : x
2. Step 2: Convert to fraction form
   118,022.77/162,871.43 = 64,307.78/x
3. Step 3: Cross multiply
   118,022.77x = 162,871.43 × 64,307.78
4. Step 4: Simplify right side
   118,022.77x = 10,473,900,656.67
5. Step 5: Solve for x
   x = 10,473,900,656.67/118,022.77
6. Step 6: Final answer
   x = 88,744.75