Finding the Fourth Proportional to 112,598.52, 155,383.56 and 61,611.05

Step by Step Solution

1. Step 1: Write the proportion equation
   112,598.52 : 155,383.56 = 61,611.05 : x
2. Step 2: Convert to fraction form
   112,598.52/155,383.56 = 61,611.05/x
3. Step 3: Cross multiply
   112,598.52x = 155,383.56 × 61,611.05
4. Step 4: Simplify right side
   112,598.52x = 9,573,343,507.42
5. Step 5: Solve for x
   x = 9,573,343,507.42/112,598.52
6. Step 6: Final answer
   x = 85,021.93