Finding the Fourth Proportional to 112,321.13, 155,009.46 and 61,338.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,321.13 : 155,009.46 = 61,338.59 : x
2. Step 2: Convert to fraction form
   112,321.13/155,009.46 = 61,338.59/x
3. Step 3: Cross multiply
   112,321.13x = 155,009.46 × 61,338.59
4. Step 4: Simplify right side
   112,321.13x = 9,508,061,713.06
5. Step 5: Solve for x
   x = 9,508,061,713.06/112,321.13
6. Step 6: Final answer
   x = 84,650.69