Finding the Fourth Proportional to 56,300.67, 77,700.20 and 31,158.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,300.67 : 77,700.20 = 31,158.27 : x
2. Step 2: Convert to fraction form
   56,300.67/77,700.20 = 31,158.27/x
3. Step 3: Cross multiply
   56,300.67x = 77,700.20 × 31,158.27
4. Step 4: Simplify right side
   56,300.67x = 2,421,003,654.86
5. Step 5: Solve for x
   x = 2,421,003,654.86/56,300.67
6. Step 6: Final answer
   x = 43,001.33