Finding the Fourth Proportional to 56,499.63, 77,891.51 and 54,752.76

Step by Step Solution

1. Step 1: Write the proportion equation
   56,499.63 : 77,891.51 = 54,752.76 : x
2. Step 2: Convert to fraction form
   56,499.63/77,891.51 = 54,752.76/x
3. Step 3: Cross multiply
   56,499.63x = 77,891.51 × 54,752.76
4. Step 4: Simplify right side
   56,499.63x = 4,264,774,879.30
5. Step 5: Solve for x
   x = 4,264,774,879.30/56,499.63
6. Step 6: Final answer
   x = 75,483.24