Finding the Fourth Proportional to 109,562.52, 151,193.20 and 61,820.31

Step by Step Solution

1. Step 1: Write the proportion equation
   109,562.52 : 151,193.20 = 61,820.31 : x
2. Step 2: Convert to fraction form
   109,562.52/151,193.20 = 61,820.31/x
3. Step 3: Cross multiply
   109,562.52x = 151,193.20 × 61,820.31
4. Step 4: Simplify right side
   109,562.52x = 9,346,810,493.89
5. Step 5: Solve for x
   x = 9,346,810,493.89/109,562.52
6. Step 6: Final answer
   x = 85,310.29