Finding the Fourth Proportional to 91,445.25, 137,047.59 and 38,789.58

Step by Step Solution

1. Step 1: Write the proportion equation
   91,445.25 : 137,047.59 = 38,789.58 : x
2. Step 2: Convert to fraction form
   91,445.25/137,047.59 = 38,789.58/x
3. Step 3: Cross multiply
   91,445.25x = 137,047.59 × 38,789.58
4. Step 4: Simplify right side
   91,445.25x = 5,316,018,456.11
5. Step 5: Solve for x
   x = 5,316,018,456.11/91,445.25
6. Step 6: Final answer
   x = 58,133.35