Finding the Fourth Proportional to 81,172.63, 112,051.35 and 69,796.45

Step by Step Solution

1. Step 1: Write the proportion equation
   81,172.63 : 112,051.35 = 69,796.45 : x
2. Step 2: Convert to fraction form
   81,172.63/112,051.35 = 69,796.45/x
3. Step 3: Cross multiply
   81,172.63x = 112,051.35 × 69,796.45
4. Step 4: Simplify right side
   81,172.63x = 7,820,786,447.71
5. Step 5: Solve for x
   x = 7,820,786,447.71/81,172.63
6. Step 6: Final answer
   x = 96,347.58