Finding the Fourth Proportional to 81,699.17, 112,738.37 and 45,887.99

Step by Step Solution

1. Step 1: Write the proportion equation
   81,699.17 : 112,738.37 = 45,887.99 : x
2. Step 2: Convert to fraction form
   81,699.17/112,738.37 = 45,887.99/x
3. Step 3: Cross multiply
   81,699.17x = 112,738.37 × 45,887.99
4. Step 4: Simplify right side
   81,699.17x = 5,173,336,402.04
5. Step 5: Solve for x
   x = 5,173,336,402.04/81,699.17
6. Step 6: Final answer
   x = 63,321.78