Finding the Fourth Proportional to 58,035.07, 79,566.82 and 56,985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   58,035.07 : 79,566.82 = 56,985.31 : x
2. Step 2: Convert to fraction form
   58,035.07/79,566.82 = 56,985.31/x
3. Step 3: Cross multiply
   58,035.07x = 79,566.82 × 56,985.31
4. Step 4: Simplify right side
   58,035.07x = 4,534,139,903.41
5. Step 5: Solve for x
   x = 4,534,139,903.41/58,035.07
6. Step 6: Final answer
   x = 78,127.59