Finding the Fourth Proportional to 81,538.79, 112,498.00 and 47,079.02

Step by Step Solution

1. Step 1: Write the proportion equation
   81,538.79 : 112,498.00 = 47,079.02 : x
2. Step 2: Convert to fraction form
   81,538.79/112,498.00 = 47,079.02/x
3. Step 3: Cross multiply
   81,538.79x = 112,498.00 × 47,079.02
4. Step 4: Simplify right side
   81,538.79x = 5,296,295,755.51
5. Step 5: Solve for x
   x = 5,296,295,755.51/81,538.79
6. Step 6: Final answer
   x = 64,954.31