Finding the Fourth Proportional to 615,066.48, 921,549.96 and 334,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   615,066.48 : 921,549.96 = 334,080.72 : x
2. Step 2: Convert to fraction form
   615,066.48/921,549.96 = 334,080.72/x
3. Step 3: Cross multiply
   615,066.48x = 921,549.96 × 334,080.72
4. Step 4: Simplify right side
   615,066.48x = 307,872,074,152.77
5. Step 5: Solve for x
   x = 307,872,074,152.77/615,066.48
6. Step 6: Final answer
   x = 500,550.89