Finding the Fourth Proportional to 56,155.83, 77,493.02 and 31,004.79

Step by Step Solution

1. Step 1: Write the proportion equation
   56,155.83 : 77,493.02 = 31,004.79 : x
2. Step 2: Convert to fraction form
   56,155.83/77,493.02 = 31,004.79/x
3. Step 3: Cross multiply
   56,155.83x = 77,493.02 × 31,004.79
4. Step 4: Simplify right side
   56,155.83x = 2,402,654,656.54
5. Step 5: Solve for x
   x = 2,402,654,656.54/56,155.83
6. Step 6: Final answer
   x = 42,785.49