Finding the Fourth Proportional to 148,389.72, 222,641.52 and 89,267.28

Step by Step Solution

1. Step 1: Write the proportion equation
   148,389.72 : 222,641.52 = 89,267.28 : x
2. Step 2: Convert to fraction form
   148,389.72/222,641.52 = 89,267.28/x
3. Step 3: Cross multiply
   148,389.72x = 222,641.52 × 89,267.28
4. Step 4: Simplify right side
   148,389.72x = 19,874,602,905.47
5. Step 5: Solve for x
   x = 19,874,602,905.47/148,389.72
6. Step 6: Final answer
   x = 133,935.17