Finding the Fourth Proportional to 112,422.80, 168,663.36 and 59,789

Step by Step Solution

1. Step 1: Write the proportion equation
   112,422.80 : 168,663.36 = 59,789 : x
2. Step 2: Convert to fraction form
   112,422.80/168,663.36 = 59,789/x
3. Step 3: Cross multiply
   112,422.80x = 168,663.36 × 59,789
4. Step 4: Simplify right side
   112,422.80x = 10,084,213,631.04
5. Step 5: Solve for x
   x = 10,084,213,631.04/112,422.80
6. Step 6: Final answer
   x = 89,699.01