Finding the Fourth Proportional to 105,090.76, 157,385.58 and 58,227.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,090.76 : 157,385.58 = 58,227.40 : x
2. Step 2: Convert to fraction form
   105,090.76/157,385.58 = 58,227.40/x
3. Step 3: Cross multiply
   105,090.76x = 157,385.58 × 58,227.40
4. Step 4: Simplify right side
   105,090.76x = 9,164,153,120.89
5. Step 5: Solve for x
   x = 9,164,153,120.89/105,090.76
6. Step 6: Final answer
   x = 87,202.27