Finding the Fourth Proportional to 86,055.31, 129,002.71 and 29,089.58

Step by Step Solution

1. Step 1: Write the proportion equation
   86,055.31 : 129,002.71 = 29,089.58 : x
2. Step 2: Convert to fraction form
   86,055.31/129,002.71 = 29,089.58/x
3. Step 3: Cross multiply
   86,055.31x = 129,002.71 × 29,089.58
4. Step 4: Simplify right side
   86,055.31x = 3,752,634,652.76
5. Step 5: Solve for x
   x = 3,752,634,652.76/86,055.31
6. Step 6: Final answer
   x = 43,607.24