Finding the Fourth Proportional to 56,499.12, 77,969.28 and 31,349.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,499.12 : 77,969.28 = 31,349.04 : x
2. Step 2: Convert to fraction form
   56,499.12/77,969.28 = 31,349.04/x
3. Step 3: Cross multiply
   56,499.12x = 77,969.28 × 31,349.04
4. Step 4: Simplify right side
   56,499.12x = 2,444,262,077.49
5. Step 5: Solve for x
   x = 2,444,262,077.49/56,499.12
6. Step 6: Final answer
   x = 43,261.95