Finding the Fourth Proportional to 56,506.02, 77,978.61 and 31,355.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,506.02 : 77,978.61 = 31,355.52 : x
2. Step 2: Convert to fraction form
   56,506.02/77,978.61 = 31,355.52/x
3. Step 3: Cross multiply
   56,506.02x = 77,978.61 × 31,355.52
4. Step 4: Simplify right side
   56,506.02x = 2,445,059,865.43
5. Step 5: Solve for x
   x = 2,445,059,865.43/56,506.02
6. Step 6: Final answer
   x = 43,270.79