Finding the Fourth Proportional to 117,443.16, 162,003.78 and 74,953.80

Step by Step Solution

1. Step 1: Write the proportion equation
   117,443.16 : 162,003.78 = 74,953.80 : x
2. Step 2: Convert to fraction form
   117,443.16/162,003.78 = 74,953.80/x
3. Step 3: Cross multiply
   117,443.16x = 162,003.78 × 74,953.80
4. Step 4: Simplify right side
   117,443.16x = 12,142,798,925.36
5. Step 5: Solve for x
   x = 12,142,798,925.36/117,443.16
6. Step 6: Final answer
   x = 103,392.99