Finding the Fourth Proportional to 157,016.59, 216,606.61 and 93,309.28

Step by Step Solution

1. Step 1: Write the proportion equation
   157,016.59 : 216,606.61 = 93,309.28 : x
2. Step 2: Convert to fraction form
   157,016.59/216,606.61 = 93,309.28/x
3. Step 3: Cross multiply
   157,016.59x = 216,606.61 × 93,309.28
4. Step 4: Simplify right side
   157,016.59x = 20,211,406,822.34
5. Step 5: Solve for x
   x = 20,211,406,822.34/157,016.59
6. Step 6: Final answer
   x = 128,721.47