Finding the Fourth Proportional to 559,061.80, 838,582.56 and 138,337.72

Step by Step Solution

1. Step 1: Write the proportion equation
   559,061.80 : 838,582.56 = 138,337.72 : x
2. Step 2: Convert to fraction form
   559,061.80/838,582.56 = 138,337.72/x
3. Step 3: Cross multiply
   559,061.80x = 838,582.56 × 138,337.72
4. Step 4: Simplify right side
   559,061.80x = 116,007,599,382.16
5. Step 5: Solve for x
   x = 116,007,599,382.16/559,061.80
6. Step 6: Final answer
   x = 207,504.07