Finding the Fourth Proportional to 56,546, 78,034.50 and 31,054.76

Step by Step Solution

1. Step 1: Write the proportion equation
   56,546 : 78,034.50 = 31,054.76 : x
2. Step 2: Convert to fraction form
   56,546/78,034.50 = 31,054.76/x
3. Step 3: Cross multiply
   56,546x = 78,034.50 × 31,054.76
4. Step 4: Simplify right side
   56,546x = 2,423,342,669.22
5. Step 5: Solve for x
   x = 2,423,342,669.22/56,546
6. Step 6: Final answer
   x = 42,856.13