Finding the Fourth Proportional to 56,277, 77,664.69 and 31,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,277 : 77,664.69 = 31,126.50 : x
2. Step 2: Convert to fraction form
   56,277/77,664.69 = 31,126.50/x
3. Step 3: Cross multiply
   56,277x = 77,664.69 × 31,126.50
4. Step 4: Simplify right side
   56,277x = 2,417,429,973.29
5. Step 5: Solve for x
   x = 2,417,429,973.29/56,277
6. Step 6: Final answer
   x = 42,955.91