Finding the Fourth Proportional to 302,010.66, 453,018.71 and 91,648.59

Step by Step Solution

1. Step 1: Write the proportion equation
   302,010.66 : 453,018.71 = 91,648.59 : x
2. Step 2: Convert to fraction form
   302,010.66/453,018.71 = 91,648.59/x
3. Step 3: Cross multiply
   302,010.66x = 453,018.71 × 91,648.59
4. Step 4: Simplify right side
   302,010.66x = 41,518,526,015.12
5. Step 5: Solve for x
   x = 41,518,526,015.12/302,010.66
6. Step 6: Final answer
   x = 137,473.71