Finding the Fourth Proportional to 56,506, 77,980.71 and 31,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,506 : 77,980.71 = 31,355.50 : x
2. Step 2: Convert to fraction form
   56,506/77,980.71 = 31,355.50/x
3. Step 3: Cross multiply
   56,506x = 77,980.71 × 31,355.50
4. Step 4: Simplify right side
   56,506x = 2,445,124,152.41
5. Step 5: Solve for x
   x = 2,445,124,152.41/56,506
6. Step 6: Final answer
   x = 43,271.94