Finding the Fourth Proportional to 56,055.66, 83,989.89 and 39,385.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,055.66 : 83,989.89 = 39,385.86 : x
2. Step 2: Convert to fraction form
   56,055.66/83,989.89 = 39,385.86/x
3. Step 3: Cross multiply
   56,055.66x = 83,989.89 × 39,385.86
4. Step 4: Simplify right side
   56,055.66x = 3,308,014,048.96
5. Step 5: Solve for x
   x = 3,308,014,048.96/56,055.66
6. Step 6: Final answer
   x = 59,013.02