Finding the Fourth Proportional to 117,611.47, 176,477.58 and 57,638.82

Step by Step Solution

1. Step 1: Write the proportion equation
   117,611.47 : 176,477.58 = 57,638.82 : x
2. Step 2: Convert to fraction form
   117,611.47/176,477.58 = 57,638.82/x
3. Step 3: Cross multiply
   117,611.47x = 176,477.58 × 57,638.82
4. Step 4: Simplify right side
   117,611.47x = 10,171,959,467.66
5. Step 5: Solve for x
   x = 10,171,959,467.66/117,611.47
6. Step 6: Final answer
   x = 86,487.82